Social and Behavioral Sciences, Tilburg University , Tilburg , The Netherlands 1 Behavioural Science Institute, Radboud University Nijmegen , Nijmegen , The Netherlands 2 & Jorien L. Treur 3 RIVM National
We previously used a single nucleotide polymorphism (SNP) in the CHRNA5-A3-B4 gene cluster associated with heaviness of smoking within smokers to confirm the causal effect of smoking in reducing body mass index (BMI) in a Mendelian randomisation analysis. While seeking to extend these findings in a larger sample we found that this SNP is associated with 0.74% lower body mass...