FTO and morbid obesity: In this two-stage GWAS, we found that six SNPs on FTO top all SNPs in association with morbid obesity in Han-Chinese (rs8050136, rs9939609, rs1421085, rs9941349, rs1121980, and rs9937354), especially with the rs8050136 and rs9939609 and rs1421085 reaching p ≤ 5 × 10− 8.