Estrogenic effect of yam ingestion in healthy postmenopausal women
Wu WH, Liu LY, Chung CJ, Jou HJ, Wang TA
Published in Journal of the American College of Nutrition
Methodology
Controlled dietary intervention replacing staple food with 390 g/day Dioscorea alata yam for 30 days in postmenopausal women.
Key Findings
Serum oestrone rose 26% and oestradiol 27%, with reduced LDL cholesterol and improved antioxidant status compared with the control period.
Conclusions
Dietary yam consumption produced modest changes in oestrogen and lipid markers, though this reflects whole-food intake rather than supplement extracts.
Limitations
No blinding, small sample, surrogate biomarkers only, food yam not standardised supplement.
Supplements Studied
Serum oestrone rose 26% and oestradiol 27% with 30 days of dietary yam, alongside reduced LDL cholesterol.
Related Health Concerns
Study Details
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