APOA1 and apolipoprotein A-I deficiency: The increase in HDL-c concentrations of the nutrigenetic diet group is consistent with some studies where a precision diet was administered to individuals with polymorphisms related to hypoalphalipoproteinemia (CETP, ABCA1, APOA1) that followed the nutrigenetic recommendations for each population [17], and an increase in HDL-c of ~1–4 mg/dL is observed in the range of 3–12 months [44,45,46].