Myths vs facts: FADS1 and Wechseljahre

FADS1 encodes a desaturase enzyme critical for converting plant-based omega-3 (ALA) into EPA and DHA. During menopause, estrogen decline alters lipid metabolism and inflammation. A common myth is that specific FADS1 variants directly cause hot flashes or weight gain. In reality, no strong human studies confirm a causal link between FADS1 polymorphisms and menopause symptoms. Current evidence is mostly mechanistic or from animal models. The fact is: FADS1 activity varies genetically, but its clinical impact on menopause remains unclear. High-dose omega-3 supplements are often marketed for symptom relief, yet evidence for efficacy is weak and inconsistent. Safety note: excessive omega-3 intake may increase bleeding risk, especially if combined with anticoagulants. A balanced diet rich in ALA sources (flaxseed, walnuts) and occasional fatty fish is sensible, but genetic test results alone should not dictate supplementation. Consumer DNA tests overstate predictive power; most menopause outcomes are multifactorial. Evidence: mechanistic/unclear.