Hormonal
Young women convert dietary alpha-linolenic acid (ALNA) to docosahexaenoic acid (DHA) at a rate (approx. 9%) significantly higher than previously reported for men (0-4%), likely due to estrogen-mediated upregulation of desaturation and elongation pathways.
If you are a woman, your body is biologically better equipped than a man's to turn plant-based omega-3s (alpha-linolenic acid) into DHA, a critical fat for brain and eye health. This is likely driven by estrogen. While you still benefit from direct DHA sources, you have a metabolic head start in converting flax, chia, or walnuts into usable DHA compared to men.
Comparison with previous studies suggests that women may possess a greater capacity for ALNA conversion than men... The extent of ALNA conversion to DHA in these young women was greater than reported in previous studies in men... These data suggest greater synthesis of both EPA and DHA in women compared with men.
Why this rating
Small sample size (n=6) and use of stable isotopes which are gold-standard for metabolic tracing but limit generalizability to broader populations without replication.
Source
Conversion of α-linolenic acid to eicosapentaenoic, docosapentaenoic and docosahexaenoic acids in young women
Graham C. Burdge et al. · British Journal Of Nutrition · 2002
DOI 10.1079/bjn2002689
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