A nutrient profiling system for the (re)formulation of a global food and beverage portfolio

European Journal of Nutrition, Feb 2016

Purpose To describe the Nestlé Nutritional Profiling System (NNPS) developed to guide the reformulation of Nestlé products, and the results of its application in the USA and France. Design The NNPS is a category-specific system that calculates nutrient targets per serving as consumed, based on age-adjusted dietary guidelines. Products are aggregated into 32 food categories. The NNPS ensures that excessive amounts of nutrients to limit cannot be compensated for by adding nutrients to encourage. A study was conducted to measure changes in nutrient profiles of the most widely purchased Nestlé products from eight food categories (n = 99) in the USA and France. A comparison was made between the 2009–2010 and 2014–2015 products. Results The application of the NNPS between 2009–2010 and 2014–2015 was associated with an overall downwards trend for all nutrients to limit. Sodium and total sugars contents were reduced by up to 22 and 31 %, respectively. Saturated Fatty Acids and total fat reductions were less homogeneous across categories, with children products having larger reductions. Energy per serving was reduced by <10 % in most categories, while serving sizes remained unchanged. Conclusions The NNPS sets feasible and yet challenging targets for public health-oriented reformulation of a varied product portfolio; its application was associated with improved nutrient density in eight major food categories in the USA and France. Confirmatory analyses are needed in other countries and food categories; the impact of such a large-scale reformulation on dietary intake and health remains to be investigated.

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A nutrient profiling system for the (re)formulation of a global food and beverage portfolio

A nutrient profiling system for the (re)formulation of a global food and beverage portfolio Antonis Vlassopoulos 0 1 2 4 5 6 7 Gabriel Masset 0 1 2 4 5 6 7 Veronique Rheiner Charles 0 1 2 4 5 6 7 Cassandra Hoover 0 1 2 4 5 6 7 Caroline Chesneau‑Guillemont 0 1 2 4 5 6 7 Fabienne Leroy 0 1 2 4 5 6 7 Undine Lehmann 0 1 2 4 5 6 7 Jörg Spieldenner 0 1 2 4 5 6 7 E‑Siong Tee 0 1 2 4 5 6 7 Mike Gibney 0 1 2 4 5 6 7 Adam Drewnowski 0 1 2 4 5 6 7 Abbreviations AS Ca DV EU EFSA F FAO Fr I 0 1 2 4 5 6 7 R IoM Na NCDs 0 1 2 4 5 6 7 0 Nestlé France , 7 Boulevard Pierre Carle, 77186 Noisiel , France 1 Nestlé USA , 30003 Bainbridge Road, Solon, OH 44120 , USA 2 Nestlé, Nutrient Profiling, Public Health Nutrition, Nestlé Research Center , Vers-chez-les-Blanc, P.O. Box 44, 1000 Lausanne 26 , Switzerland 3 Jörg Spieldenner 4 Added sugars Calcium Daily value European Union European Food Safety Authority Fiber Food and agriculture organization Fructose Innovation & renovation Institute of medicine Sodium Non-communicable diseases 5 Center for Public Health Nutrition, University of Washington , Box 353410, Seattle, WA 98195-3410 , USA 6 School of Biomedical Sciences, University of Ulster , Coleraine , UK 7 TES NutriHealth Strategic Consultancy , c/o 46, Jalan SS 22/32, 47400 Petaling Jaya, Selangor , Malaysia Purpose To describe the Nestlé Nutritional Profiling System (NNPS) developed to guide the reformulation of Nestlé products, and the results of its application in the USA and France. Design The NNPS is a category-specific system that calculates nutrient targets per serving as consumed, based on age-adjusted dietary guidelines. Products are aggregated into 32 food categories. The NNPS ensures that excessive amounts of nutrients to limit cannot be compensated for by adding nutrients to encourage. A study was conducted to measure changes in nutrient profiles of the most widely purchased Nestlé products from eight food categories The research presented herein was funded by Nestec Ltd, which is a wholly owned affiliate of Nestlé S.A. Nutrition; Foods; Nutrient profiling; Reformulation - 5 Institute of Food and Health, University College Dublin, Belfield, Dublin 4, Ireland NNPS P PUFA RACC SFA TF TFA USDA SR27 US USFDA Improving the nutrient density of food products through reformulation is one approach to improve diet quality and to reduce the prevalence of non-communicable diseases (NCDs) [ 1, 2 ]. Food reformulation can be either mandatory or voluntary, and it has been identified as one of the most relevant and cost-effective public health nutrition strategies [3]. The World Health Organization (WHO) and the World Health Assembly have identified the need for the food industry to reduce the amounts of saturated and trans-fat, free sugars and salt in the global food supply [ 4 ]. Focusing on the overall nutrient density of foods, the WHO European Action Plan emphasized that new nutrient-rich food products would need to be developed to achieve dietary goals at the population level [ 5 ]. Nutrient profiling is described as the science of ranking or classifying foods based on their nutrient composition for the purpose of preventing disease and promoting health [ 6 ]. Nutrient profiling models can be used for various applications, including the regulation of nutrition and health claims [ 7, 8 ], marketing of food products to children [ 9, 10 ], product promotion at point of sale [ 11 ], and front-ofpackage labeling [ 12 ]. For the food industry, an important application of nutrient profiling is to assist in developing a more holistic, nutrition-oriented reformulation of their food portfolio [ 13, 14 ]. Multiple nutrient profiling models are currently available; while most are in the public domain [ 7–9, 15 ], some are proprietary [11]. These models tend to vary widely in their selection of nutrients, the basis used for calculation (per 100 g/kcal or per serving), and the choice of thresholds or scoring algorithm used [ 15 ]. In “across-the-board” models, the same algorithm is applied to all foods and beverages, whereas “category-specific” models use different algorithms for different food categories [ 14 ]. Regardless of the parameters employed by each model, nutrient profile models need to be specifically designed for the purpose for which they will be used. Front-of-pack labeling systems were shown to have some effect on product reformulation [ 16 ], but the literature on evaluating the profiling systems specifically developed for reformulation and their performance is limited [ 14 ]. The Nestlé Nutritional Profiling System (NNPS) was designed specifically for the reformulation of a global product portfolio spanning several food and beverage categories, taking into consideration both the consumers’ eating habits and the needs of specific age groups. The objective of this paper is to present the NNPS and changes in nutrient density across eight food categories in the USA and France following the application of the NNPS between 2009–2010 and 2014–2015. Materials and methods Scope and principles of the Nestlé Nutritional Profiling System (NNPS) Our goal was to develop a nutrient profiling system to help guide the formulation of new foods and beverages or the reformulation of existing ones. This methodology is being implemented for the majority of the Nestlé food and beverage portfolio. Infant formulas and medical nutrition products are regulated separately and are beyond the scope of the NNPS, as are food products for children <4 years of age. The NNPS was only applied to the brands owned by Nestlé; the products sold from Cereal Partners Worldwide (a joint venture between Nestlé and General Mills) were not profiled with the NNPS but with the specific profiling system used by the joint venture [ 17 ]. The outcome of the NNPS is dichotomous, i.e., “YES” or “NO,” and relies on pre-defined target values for a set of nutritional factors. To achieve a positive outcome, all target values must be met, i.e., the algorithm is non-compensatory. Four guiding principles were used to define targets for the nutritional factors: (1) nutritional factors include energy, nutrients to limit and nutrients to encourage; (2) the set of nutritional factors and associated target values is category specific; (3) target values are age specific, depending on the products; and (4) target values are defined per serving of the product as consumed. Pure roast and ground coffee, soluble coffee, pure tea, plain water and products consisting of >95 % whole milk with no added energy-providing nutrients were identified as not in the scope of reformulation for nutrients to limit and are therefore scored as “YES.” The system, originally developed in 2004, has a dynamic design that allows for the product categories, nutrient targets and reference values to be modified to incorporate the latest evidence in the area of food technology and public health nutrition. Here, we present the latest version of the system as modified in March 2014. Development of product categories The NNPS food categorization was decided by a crossfunctional team that included food technologists and nutritionists and taking into account the renovation history of the food category as well as latest innovations in food science. The food categorization process was structured in two steps: (1) identifying the product role in the diet and (2) grouping products based on similar nutrient composition and/or challenges in the reformulation process. In the first step, the role of the product in the daily diet was considered. The total daily energy intake was divided into the different eating occasions. Based on the results of a literature review of dietary guidelines and dietary intake surveys [ 18 ], the NNPS assumes an energy repartition pattern of three main meal occasions, each accounting for 20–35 % of daily energy intake, and 1–2 snacking occasions, each accounting for 5–10 % of daily energy intake. Three main product roles were identified from these eating occasions: larger meal components, smaller meal components/snacks, and accessories. Larger meal components represent foods that provide the main source of energy during one of the three main meals. Smaller meal components and snacks are products either consumed in-between meals or as part of one of the main meals, but in the latter case they are normally consumed as an appetizer, dessert or individual element of a dish providing less than onethird of the overall energy from the meal. Accessories are products consumed as a minor component of a meal (cold sauces, dressings) or between meals (e.g., hard candies) and share the common characteristic of very small energy contribution to the daily diet. The second step in defining food categories aimed at pooling together products based on those parameters significantly influencing a product’s nutrient composition. This allowed for the establishment of challenging yet achievable targets. Such grouping was either: A. Ingredient based, i.e., based on the presence of a dominant raw material or of a specific combination of raw materials (cereal- based, milk- based, cocoa- based e.g., chocolate - , vegetable based - e.g., soups-, or a specific combination - e.g., pizzas) B. Process based, i.e., products sharing the same unique production process impacting the nutritional composition (e.g., ice creams, cheeses). In the case of ice cream and cheese the key ingredient is dairy milk/cream in both, but technological constraints are different due to the role of salt in cheese for ripening and preservation versus the role of sugar in the freezing of ice cream. C. Combination of the above, i.e., water ice and sorbet share common production considerations with ice cream (freezing), but they differ in the principal ingredient (dairy vs. water/juice based). Categories relevant to the Nestlé food and beverage portfolio were considered; this included the majority of manufactured foods and beverages available in the food supply. The categories were named in such a way that food developers could easily identify which Nestlé products would fall into a specific category (e.g., dairy-based accessories were named as sweetened condensed milk based on the products available in the Nestlé portfolio). The resulting food categories are listed in Table 1. Selection of nutritional factors Based on the World Health Assembly Global Strategy on Diet, Physical Activity and Health [ 4 ], saturated fatty acids (SFA), trans-fatty acids (TFA), added sugars (AS) and sodium (Na) were designated as compulsory nutrients to limit across all categories. The NNPS is a system designed to be equally applicable for use by food developers and nutritionists; to facilitate optimal guidance for the end user, additional factors were incorporated into the system. Under this scope, three additional factors were added for these respective reasons: total fat (TF) to ensure the overall reduction in fat content alongside the removal of SFA and TFA, energy (E) to guide portion size optimization and fructose (Fr) to ensure that fructose or high-fructose corn syrup (HFCS) (ingredients with higher sweetening power) were not used excessively in light of any possible health effects of high-fructose consumption [ 19 ] (Table 1). Only TFA originating from partially hydrogenated oils were considered in the calculation of nutrient profiles, in line with the company’s policy on trans-fat [ 20 ]. Added sugars were defined as all mono- and disaccharides added during the manufacturing or preparation of a product. Naturally occurring sugars (lactose from milk/dairy fractions, mono- and disaccharides from unsweetened fruit ingredients) were excluded provided that the unsweetened fruit ingredient was not added for sweetening purposes. Based on the molecular structure, any added sucrose was counted as 50 % fructose and 50 % glucose. For the calculation of sodium, both added sodium and sodium from natural sources were considered. Alongside the nutrients to limit, a list of nutrients to encourage was identified (e.g., protein, calcium, fiber). Targets for nutrients to encourage were included in product categories where this was considered sensible and where the nutrients supported the role of the product in the diet (Table 1). 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Due to their importance in the diet, the categories complete meals, and side dishes & center of plate food items (i.e., food items acting as the principal protein source in a main meal) needed to be profiled against a minimum of two nutrients to encourage, including protein. In such cases, the second compulsory nutrient to encourage had to be selected from a list of nutrients/ingredients. For milk and dairy products, protein and calcium were considered nutrients to encourage. Fiber was considered a nutrient to encourage for cereal-based foods. The list of other nutrients/ingredients to encourage included fruits & vegetables, whole grains, vitamins, minerals and essential fatty acids all selected according to the relevance for the specific food product (Table 1). No nutrients to encourage were applied to products classified as accessories, because their contribution to the diet was considered too small. Selection of age‑appropriate daily reference values Daily reference values (DVs) of various nutrients to encourage and various nutrients to limit are presented in Table 2. Consumers were split into three age groups: adults, children 4–8 years old and children 9–11 years old (children >11 years old were considered as “adults”). Public health nutritional recommendations for each age group were applied to define what constitutes a nutritionally adequate diet. The United States Food and Drug Administration (USFDA) DVs [ 21 ] in combination with the Institute of Medicine (IOM) recommendations for total fat intake [ 22 ] were used as the initial basis to set the NNPS global DVs for a 2000 kcal daily diet for adults. In the absence of specific US FDA values for trans-fat and added sugars, the WHO recommendations were followed [ 23, 24 ]. In each NNPS update the latest recommendations of the WHO and other bodies were considered in order to adjust the DVs. DVs for children were adopted accordingly for a 1700 kcal daily diet for children 4–8 years old based on the IOM recommendation [22]. For children, dietary fiber intake followed the European Food Safety Authority (EFSA) guidance [ 25 ], while for all micronutrients, except sodium, adult DVs followed CODEX recommendations [ 26 ] and children DVs followed recommendations of the Joint FAO/WHO Expert Consultation [ 27 ]. NNPS is applied globally through a dedicated proprietary software which allows local DVs to be applied as the basis of the profiling system instead of using international DVs, when the former are available. This decision was made to allow the system to address local dietary needs. Selection of the base for calculation Nutritional factor targets were set based on the assumption that food products are consumed as part of a nutritionally adequate diet [ 28 ]. As a result, the base for calculation was decided to be one serving of the final product as consumed after reconstitution and/or cooking. Consumer behavior data from local market research were used to define the eating habits and estimate amounts customarily consumed as portion sizes in each geographical region separately. To help guide the reformulation of serving, maximum energy targets per serving were developed for each food category. Development of nutrient and energy targets per category Following the principles described below, target values were set for energy, nutrients to limit and nutrients to encourage (Tables 3, 4). Energy targets were developed for each product category based on the energy repartition pattern of three main meals (20–35 % DV for energy each) and two snacks (5–10 % DV for energy each) (Table 3): for larger meal components, the maximum energy target was set between 15 and 30 % of total energy depending on whether the components were the sole source of energy in the meal or not; for smaller meal components and snacks, the energy target was set to ≤10 %; for accessories, the target was set to ≤5 %. The first approach toward setting targets for nutrients to limit was to set up baseline targets aligned with the energy targets for the product category. For example, product categories delivering ≤10 % of daily energy per serving should not deliver more than 10 % of the DV of a given nutrient to limit per serving. Alternatively, for larger meal components delivering ≥10 % of energy per serving, nutrient targets were aligned as closely as possible with inter- or- national dietary recommendations. For example, the WHO recommends that total fat intake should not exceed 30 % of daily energy, and therefore, the target for total fat in cereal-based foods (as a main meal) was set accordingly. As a result, targets for nutrients to limit were expressed in two ways, either as % of energy (e.g., total fat ≤30 % energy) or as % DV (e.g., sodium ≤10 % DV/serving). The reference unit as % of energy was used for product categories with a higher contribution to the daily energy intake (i.e., larger meal components) for nutrients providing energy; the reference unit as a % DV was used in all product categories delivering ≤10 % of recommended daily energy per serving, for all nutrients. Category-specific targets were then set up starting from the above-defined “baseline” targets. The setting-up of category-specific targets considered technological and organoleptic aspects by a cross-functional team including nutritionists and food technologists. The following elements were considered: nutrient content of similar foods in the food supply and existing reformulation targets from other profiling systems (Table 2). As an example, although Table 2 Daily reference values (DVs) of various nutrients to encourage and nutrients to limit, for adults and children [ 14, 21–30 ] Nutrient a Includes mono- and disaccharides present in the raw materials such as sugar, corn syrup, corn syrup solids, fructose sweetener, honey, molasses and all powdered form of any syrup. Naturally occurring sugars (lactose from milk/dairy fractions, mono- and disaccharides from unsweetened fruit ingredients) are excluded provided that the unsweetened fruit ingredient is not added for sweetening purposes ice creams are not expected to contribute to more than 10 % of the daily energy, the saturated fat and sodium targets were set to ≤20 % DV/serving (allowing for dairy ingredients, including milk fat) and ≤5 % DV/serving (due to a lower intrinsic concentration of sodium in the raw ingredients), respectively, instead of ≤10 % DV/serving. Other examples of category-specific targets include products with a preferred savory or sweet taste, such as salty and savory biscuits (in the case of sodium), or ice cream, water ice and dairy desserts (products where sugar has technical and taste properties) in the case of added sugars. In the case of sodium targets, they were aligned with technical considerations and local profiling systems (e.g., sodium target for soups in the Heart Foundation Tick Australia) or as described in other nutrient profiling systems [ 14 ]. In the case of added sugars, a maximum value applying to all category-specific added sugars target was set at ≤25 % DV per serving for the smaller meal components/ snacks and accessories product roles and ≤25 % of total energy for larger meal components. This decision was made based on the WHO recommendation of limiting free sugar intake over a maximum of four “sugary” eating occasions [ 23 ] and the US (IOM) recommendation that ≤25 % of energy from added sugars should be consumed to ensure adequate micronutrient intake [ 22 ]. Unlike other nutrients, TFA were profiled against one common threshold across all categories (Table 3). Targets were set in a similar way for nutrients to encourage. For protein, the WHO guidance of 10–15 % of total energy [ 23 ] was translated into a target of ≥12 % of energy per serving (Table 3). The nutrient target for calcium was set to ≥111 mg/100 kcal in alignment with the protein target, based on an average calcium-to-protein ratio of 37 mg/g found in cow’s milk. For dairy desserts, the calcium target was set to ≥5 % DV/100 kcal based on the CODEX minimum level to claim “source of calcium” for adult products. For children products, the calcium target was set to ≥6 % DV/100 kcal adapted from the target for adults, taking into consideration the lower total energy % % 5 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 5 5 5 5 5 5 5 5 5 5 5 5 ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ V V V V V V V V V V V D D D D D V D D D D D D D % % % % % 2 2 2 2 2 2 b 5 . 2 2 2 2 2 2 2 2 2 0 2 2 T % ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ n n n i V i i V V V V V V n D D D D D D e D en % % % % % % % % % % % % % .5 0 0 0 5 0 0 .5 0 0 0 5 % 0 .5 7 1 1 1 1 1 5 7 5 1 5 1 5 1 7 V n V V V D e D V D D D % ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ g m n i i l v o r t e ts gy /s 0 n r V 0 0 0 0 0 0 0 0 0 0 0 0 0 .5 ie en D 15 –02 30 2 3 2 1 1 1 1 1 1 1 1 1 5 1 7 r s t E % ≤ 1 ≤ ≤ ≤ ≤ k ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ u c n a r l n le3abittttrrfseaenugoN ltrrsceeeoagpnonamm iltr-fsseaeaabkdbk rseeaegbv lf-rsseaeeadoobd ltllli(sssaeeeaepdohmm ittfrsaaeaaeeanpnomm iili)szzacpgndun185g> iitrfssaceeeednhdndo ltfsae*doop liiisssseaaadononndhm tiltrfseecazzaaeonp )(g581< lllt/rssceeeaoaopnnmmm spuo tlrsssacaednpuddo irsszzaaaepdndodguh rsscaaknovy tlitirsssaacaovydnyub sseeeh tfrrsssseaceeehdnguho tirrssseeady rsaceecm ittrrsssaeceaednob irrsaeeecevgbdhn lirssceaauynu T L M C C S A P S S C B S S C Y D I W E C % % V V V V D D V D D D % % % % 5 5 % 5 5 2 2 1 2 2 V V D D V V V V V D D D D D % % % % % 5 5 2 2 5 5 5 5 5 ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ ≤ y t ta ta f- f s t o n t ra 2 2 2 2 2 2 2 T % ≤ ≤ ≤ ≤ ≤ ≤ ≤ s d i c a g n i a isd rsev ren d ac re il tty ,p ch fa ted in d a V F V te ic D T D ra nd % % % u i 0 5 5 ta s 2 6 1 S A ≤ ≤ ≤ g n i v a r n e e s r r ld e i p h , c ted in V a V n ta ic D e D f d % % % tla in 0 0 .5 o s 1 5 7 T A ≤ ≤ ≤ g n i v r e y /s g r V 0 en D 1 E % ≤ ≤ r o V V V V D D V D D D % % % % 0 0 % 5 0 1 2 5 1 1 ≤ ≤ ≤ ≤ ≤ V V V V D D V D D D % % % % Fiber – %en % energy; DV daily value, based on international or local recommendations a ≥16 %DV/100 kcal for children 4–8 years old b ≥6 %DV/100 kcal for children 4–8 years old c Cereal-based products consumed as a snack are not considered a high source of fiber, but still a potential carrier product so the compulsory fiber target is set to 5 %DV/serving intake of children (1700 kcal vs. 2000 kcal). The nutrient target for fiber was aligned with the USFDA criterion for “source of fiber” and set to ≥10 % DV per serving (Table 4) [ 29 ]. The micronutrient targets were set in alignment with the local requirements for a product to be classified as “source of” (Table 2). In relevant product categories, targets for fruit and vegetables and whole grain were set at ≥1/2 to ≥1 portion per serving of food or beverage product depending on the product role. A portion of fruit and vegetables was defined as 80 g of fruit and vegetables. The WHO population nutrient intake goals recommend the consumption of at least 400 g of fruit and vegetables per day [ 23 ]. This recommendation, combined with local campaigns for the promotion of consumption of fruit and vegetables (“5-a-day” campaigns), allows defining one portion of fruit or vegetable at 80 g. For whole grain, the US dietary guidelines [ 30 ] recommend consuming at least 3 oz equivalent of whole grain per day. One ounce corresponds to 28 g of whole grain product, corresponding to 16 g of pure whole grain which was selected as a portion of whole grain. For the specific case of milk and dairy products for children as well as cereal consumed with milk, the decision was made for the system to allow for whole milk to be used; as a result, the nutrient targets for total fat and saturated fat were adjusted accordingly. Validation and testing A scientific advisory board was put in place to provide guidance and to ensure the validity of the system. In the interest of testing the consistency and magnitude of nutritional changes associated with the application of the NNPS, a case study was conducted on eight product categories in the USA and France: pizza, milk-based beverages (as a snack), water ice and sorbet, and complete meals for the USA; and children’s ice cream, center of plate food items (main protein carriers), soups and cold sauces for France. The USA and France were selected, being two major countries for Nestlé in terms of sales. Product categories were selected based on the respective volume of sales (covering 40–50 % of total sales) and data completeness of the nutritional information at the time of analysis (nutritional information for 2014–2015). Categories selected were also representative of the three main product roles as defined by the NNPS (i.e., larger meal components, smaller meal components/snacks, and accessories). For each product category, the 15 most widely purchased Nestlé products were identified, unless a product category included less than 15 products in which case all products available were analyzed. Nutrient profiles were retrieved for the years 2009– 2010 (as reference year) and 2014–2015 in a paired manner, based on the availability of a complete dataset, so that longitudinal changes after the NNPS application could be analyzed. For the purpose of the manuscript, analyses were focused on total sugars rather than added sugars. Total sugars content is a regulatory requirement for on-pack labeling, and hence, the accuracy of retrospective data is higher than for added sugars. That in turn ensures higher accuracy when studying longitudinal changes. Added sugars are the only fraction of total sugars that is amenable to reformulation; therefore, the reported changes in added sugars reflect directly changes in total sugars. There was no attempt to reduce e.g., naturally occurring sugars in milk. Portion sizes as indicated on the labels were used. Given that the sample selected for the analysis is a fixed sample of products and not meant to represent all products under the same category, only descriptive statistics were used to identify changes in key nutrients per product category. All reductions were compared against an arbitrary 10 % cutoff point, with this cutoff being used as a measure of how extensive the reformulation has Fig. 1 Changes in content per serving for sodium shown for each individual product (grey) and the product category average (black). N represents the number of unique products and not the number of unique recipes. In the figure, points for unique products with similar nutrient profiles are superposed. Also products might have similar content for a given nutrient despite being derived by a different recipe and those are again superposed. Center of plate foods describes all the food items that are the main protein carrier of the meal, including fish and meat products as well as plant-based protein sources (like pulses) in the case of vegetarian meals been. As the same parent recipe may be used to produce more than one product, the decision was made to analyze changes in the composition of the most widely purchased products and not the composition of the parent recipes (i.e., not to merge products based on the parent recipe). This strategy focuses on the impact at the consumer level and not on the number of recipes reformulated, plus it accounts for differences in packaging and usage, which can have an impact on the final amount of product (serving) consumed. Results Overall 99 Nestlé food and beverage products were identified through the screening process. Examples of products identified in each category included chocolate milk powder and ready-to-drink flavored milk in milk-based beverages, ham and sausages in center of plate foods, lasagna and macaroni and cheese in complete meals. In the majority of cases, the 15 most widely purchased Nestlé products were different versions of similar recipes, whereas for pizzas, soups and cold sauces each product was linked to a unique recipe. The unique recipes per product category were: 11 for complete meals, 10 for milk-based beverages, 7 for ) 7 ) 8 7 ( 4 ( 3 1 7 ) 7 8 ) ( 0 3 ( 1 0 a a a / / / n n n 2 2 2 a / − − n 3 4 1 1 a 1 1 / − n 1 − − ) ) 3 0 5 6 ( a ( /a / 8 n 9 n ) ) 0 ) 4 8 0 6 ( ( ( 2 0 9 1 s r a s % n g tc 0 n u u 1 io S d t ) l o ≥c 7 ta rP tih u ) 4 o ed % ( T # w r ( 7 s n o i tc s % n u tc 0 n d u 1 io re ium do ≥tc ) tih do rP tih eud )% (0 w S # w r ( 0 % 0 1 ≥ b a T rev ahn A c rev ahn A c 1 0 2 1 2 0 0 1 − − − ) ) 0 ( ) 0 ( ) ) 0 0 ( ( ) ) ) 0 0 0 ( ( ( 0 0 ) D water ice and sorbets, 3 for children’s ice creams and 6 for center of plate foods. In all categories combined, the percentage of products meeting all the nutrient targets for the category (classification YES) increased from 36 % in 2009–2010 to 61 % of products in 2014–2015. Among the products classified as NO, 33.3, 46.1, 25.6 and 17.9 % required a further reduction in total sugars, SFA, total fat, and sodium, respectively. Between 2009–2010 and 2014–2015, there was a downward trend in the amounts of all nutrients to limit. Sodium reformulation was homogeneous across almost all categories showing a reduction in sodium content, with the exception of cold sauces which remained stable (increase of less than 2 mg/serving). Sodium reduction was more prominent in products with high sodium content like pizzas, soups and center of plate foods (11–14 % reductions; Fig. 1) as well as children’s products, in this case milk-based beverages (22 % reduction; Table 5). Total sugars were the nutrient with the most extensive reduction of 0.3–4.8 g/serving (Table 6). Milk-based beverages and pizzas had the largest reductions of 31 and 24 %, respectively, with 87 % of all products analyzed having more than 10 % reduction in total sugars content (Table 5). Smaller reductions were seen in complete meals and water ices. The reduction in total sugars in children’s ice creams was the most homogeneous with all products’ contents being reduced by approximately 6 % (Fig. 2). Serving sizes were largely unchanged, while reductions were observed in water ices and children’s ice creams in the range of 1.2–1.6 g per serving equivalent to a 2 % reduction (Table 5 and Table 6). Energy per serving was reduced by 1–16 % in 6 out of 8 categories, while small increases in 0.3 and 3.3 kcal/serving were documented in cold sauces and soups, respectively (Table 6). Nearly half of the products in the milk-based beverages, water ices, and children’s ice cream categories had a minimum of 10 % reduction in energy per serving (Table 5). In all categories included there was a reduction in total fat and SFA content. Milk-based beverages had the largest reductions in total fat and SFA (36 and 66 % reductions). Products targeted to children had the largest reductions in total fat (1 g/serving or 36 % in milk-based beverages and 1.2 g/ serving or 25 % in children’s ice cream; Tables 5, 6). Reformulation with respect to SFA content had a high variability (Fig. 3), with a main focus on children products followed by soups and complete meals. Pizzas was one product category where some rare cases (n = 2) of SFA content increasing were documented (Fig. 3), but at the same time 53 % of all pizza products had SFA reductions larger than 10 % of the original content. Other categories Fig. 2 Changes in content per serving for total sugars shown for each individual product (grey) and the product category average (black). N represents the number of unique products and not the number of unique recipes. In the figure, points for unique products with similar nutrient profiles are superposed. Also products might have similar content for a given nutrient despite being derived by a different recipe and those are again superposed. Center of plate foods describes all the food items that are the main protein carrier of the meal, including fish and meat products as well as plant-based protein sources (like pulses) in the case of vegetarian meals Fig. 3 Changes in content per serving for saturated fatty acids shown for each individual product (grey) and the product category average (black). N represents the number of unique products and not the number of unique recipes. In the figure, points for unique products with similar nutrient profiles are superposed. Also products might have similar content for a given nutrient despite being derived by a different recipe and those are again superposed. Center of plate foods describes all the food items that are the main protein carrier of the meal, including fish and meat products as well as plant-based protein sources (like pulses) in the case of vegetarian meals included soups and center of plate foods, but overall only 9 % of the products analyzed showed an increase in SFA, and in the majority of cases, this was linked with an increase in serving size. Discussion The World Health Assembly 2004 specifically called the food industry to set about the reformulation of food products in order to provide affordable, healthy and nutritious choices to consumers. Specifically, the report stated the need for “Initiatives by the food industry to reduce the fat, sugar and salt content of processed foods and portion sizes, to increase introduction of innovative, healthy, and nutritious choices” [ 4 ]. This call was renewed by the WHO Plan of action for Europe for the years 2007–2012 [ 5 ], and it was also taken up by the EU Platform on Diet, Physical Activity and Health, which put reformulation in its core activities [ 31 ]. It is against this background that the NNPS has been established. The present paper sets out to illustrate the challenges that lie behind product reformulation based on a transparent nutrition profiling system. This has been done with 99 food products in eight food categories. This process of reformulation will be both ongoing and global in its reach. In the USA and France, the majority of products in the eight food categories analyzed showed an improved nutritional content during the 4- to 5-year application of the NNPS. This reformulation effort was associated with lower levels of nutrients to limit, especially sodium and total sugars. Results for SFA and total fat were more category specific but still indicated an overall reduction trend. It is important to highlight that the majority of these changes have been achieved without substantial reductions in serving sizes and with priority given to children’s products. The NNPS is a compulsory step in product reformulation within the company, and it is the main tool for product developers to improve the product portfolio. The system allows for comparison with other profiling systems or with competitor products against NNPS criteria. In that context, the systematic application of NNPS as a global tool is strongly related to the majority of the changes in the product portfolio [ 32, 33 ], but improvements in the products cannot be completely disassociated from parallel changes in the external environment. As illustrated above, the NNPS comes with strengths as well as limitations. The main strengths of the system include the non-compensatory algorithm, the age-specific nutrient targets and the fact that the system has been applied for more than 10 years across a global product portfolio. For food products to become more likely to contribute towards nutritionally adequate diets, it is important that they not only contain less of the nutrients to limit, but also more nutrients to encourage [ 34 ]. The simultaneous profiling of nutrients to limit and nutrients to encourage has been questioned, as this strategy allows products to achieve better nutrient profiles simply by increasing the content of nutrients to encourage with no change in nutrients to limit [ 35, 36 ]. To bypass such a limitation, the NNPS targets for both nutrients to limit and encourage are non-compensatory, an approach also used by other systems including the SAIN, LIM system [37] and Nutrimap [ 38 ], ensuring that the NNPS outcome gives a realistic representation of the overall nutritional value of a product and does not simply reflect an increase in nutrients to encourage, for example, through fortification. The choice of three age groups instead of one is a strength of the proposed system, as it ensures that products for children are designed to support their specific nutritional needs. To differentiate between the needs of younger children and adolescents, two separate age groups were employed, constituting another important improvement compared to previously published systems [ 34 ]. For product (re)formulation to address public health nutrition needs, it should combine both public health priorities and the eating habits of local populations. The NNPS was designed for an international product portfolio. In recognition of the importance of addressing local public health priorities, the end user has the possibility to implement local nutritional recommendation or regulation values through the use of a dedicated software, instead of being restricted to the standard values proposed by the system. To further increase the local applicability of the system, data on local consumption habits were used to classify each food product into the most appropriate NNPS food category, e.g., ham was classified as center of plate in France, whereas it is considered under the cold cuts category in Belgium. The same approach was followed to define serving sizes, based on consumer data and local eating habits. Using official recommendations for the setting of nutrient targets and linking the targets directly to DVs is a strength of this system as this is not the case in other nutrient profiling schemes [ 10 ]. On the other hand, the main limitations of the NNPS are linked to the need for a large-scale implementation in a varied product portfolio. One potential use of nutrient profiling systems is to help the food industry to better align its products with public health priorities and goals. The most useful models in this context are category specific (e.g., choices) [ 12 ] and therefore more sensitive to food chemistry issues and the specific characteristics of food products. While such systems may appear more permissive, they can help set challenging yet feasible nutrition targets for the reformulation of product categories. The nutrient standards used in the NNPS were saturated fat, added sugar and sodium. Those three nutrients were also used in the creation of the limiting nutrients (LIM subscore) in both the French SAIN, LIM system [ 37 ] and the US-based Nutrient Rich Foods Index [ 39 ]. Comparative studies have also shown that the LIM subscore was highly correlated with the FSA-Ofcom nutrient profiling model [ 40 ], used in the UK to regulate advertising and marketing to children [ 10 ]. In the present analyses, we observed reductions in the LIM components as well as small reduction in the total LIM subscore (data not shown). The present nutrient profiling model focuses on saturated fat, sugar and sodium—the same nutrients of concern as identified by regulatory agencies worldwide. In the context of the capacity of the system to guide effective reformulation, it is apparent that despite it being linked to high levels of reduction in total sugars, the (re) formulation process is not yet complete and further work is needed among specific categories. Similarly, the reformulation of total fat and SFA has been much more category specific and has so far yielded less extensive results. It should also be noted that for the specific case of milkbased beverages, the observed total fat and SFA reduction was mainly achieved by switching from semi-skimmed to skimmed milk as the main ingredient. These differences between nutrients illustrate the simple fact that reformulations occur in waves and efforts are commonly focused on one or two nutrients per wave. Reformulation for the reduction in total fat and SFA, while keeping organoleptic and technical properties intact, is very challenging and new technologies are still being developed to address these issues. This is most likely the reason why among products not meeting all the nutrient targets (classification “NO”) total fat and SFA content were identified as areas for future improvements. At the same time, successful reformulation should also be linked to a taste preference by the consumer, which is not in support of radical changes in nutrient profiles, but it rather encourages gradual improvements in the food supply. The overall aim of reformulation is to lower excessive consumption of nutrients to limit and—in specific regions—to increase the population intake of nutrients with documented deficiencies. There is a need to assess the potential population impact of the NNPS criteria. Diet modeling, using either existing dietary surveys, Monte Carlo simulation, or diet optimization, could help in determining whether achieving the nutritional targets for each food category does indeed improve the nutritional intake of targeted populations [ 41–43 ]. Epidemiological and health economics models may also be useful for assessing the effect of reformulation on a population’s health indicators [ 1, 3 ]. For both dietary and economic modeling studies, adequate data with respect to the consumption of manufactured goods would be needed in order to obtain credible estimates of the potential impact of reformulation. In addition, further research across different countries and food categories is necessary to identify the way individuals purchase and prepare their foods. Conclusions The Nestlé Nutritional Profiling System (NNPS) sets meaningful and realistic nutrient targets for nutrition-oriented manufactured food (re)formulation while maintaining consumer preference. It is currently applied across a wide range of food categories in all countries in which Nestlé operates, with the possibility for the end user to adapt targets depending on local conditions, regulations and public health needs. As presented in this study, the application of the NNPS in the USA and France was associated with significant reductions in sodium, total sugars and total fat in the most widely purchased products across eight food categories. Confirmatory analyses are needed to assess the nutritional composition changes resulting from the application of the NNPS in more food categories and in other regions. An estimation of the potential impact on population-wide nutritional intake is needed to validate the methodology and guarantee that the proposed system could help consumers in achieving healthier diets. Acknowledgments The authors would like to thank the scientists who worked over the years on the constant development of the system and especially Marie Noelle Falquet and Armand Malnoe, as well as Kim Krumar, for providing data for the USA case study and Nicolas Pineau for the statistical guidance. Compliance with ethical standards Conflict of interest AV, GM, FL, VRC, UL and JS are employed by Nestlé Research Center, Switzerland, a member of Nestec Ltd. Nestec Ltd, a wholly owned affiliate of Nestlé S.A, provides professional assistance, research and consulting services for food, dietary, dietetic and pharmaceutical products of interest to Nestlé S.A. CH is employed by Nestlé USA. CCG is employed by Nestlé France. AD, MG and EST are consultants to Nestlé for nutrient profiling issues; MG and AD are also members of the Nestlé Nutrition Council. AD has received grants, honoraria and consulting fees from numerous food, beverage and ingredient companies and from other commercial and nonprofit entities with an interest in the nutrient density of foods. The University of Washington receives research funding from public and private sectors. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 1. 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Antonis Vlassopoulos, Gabriel Masset, Veronique Rheiner Charles, Cassandra Hoover, Caroline Chesneau-Guillemont, Fabienne Leroy, Undine Lehmann, Jörg Spieldenner, E-Siong Tee, Mike Gibney, Adam Drewnowski. A nutrient profiling system for the (re)formulation of a global food and beverage portfolio, European Journal of Nutrition, 2017, 1105-1122, DOI: 10.1007/s00394-016-1161-9