Some studies have found significant genotype–phenotype associations between variants of FADS1/FADS2 (rs174547, rs174575) genes and atherogenic dyslipidemia (high triacylglycerol (TAG) and low high-density lipoprotein cholesterol (HDL-C) levels) [29,30,31,32,33,34]. The gene discussed is FADS2; the disease is metabolic syndrome.