The TPH1 A218C genotype distribution was in Hardy-Weinberg equilibrium in the patients with eating disorders and healthy participants (χ2=2.01, df=2, p=0.16), BN (χ2=1.77, df =2, p=0.18) and AN (χ2=0.54, df=2, p=0.46). Here, TPH1 is linked to eating disorder.