Mendelian randomization also showed methylation levels associated with higher diet quality at cg00711496 (PRMT1) to be causally associated with lower BMI, T2D risk, and CHD risk and at cg0557921 (AHRR) with lower CHD risk [although weakly, risk ratio (RR) = 0.98 (0.96; 1.00), P = 0.05]. The gene discussed is AHRR; the disease is type 2 diabetes mellitus.