Short-term consumption of phytoestrogen-rich foods in humans alters dietary macro- and micronutrient intake
2006
Woodside, J.V. | Morton, M.S. | Cooper, A. | Leathem, A.J.C.
The aim of this study was to determine how nutrient intake is affected by a short-term phytoestrogen-rich diet. Ten healthy volunteers consumed 100 g soya chunks, 150 g lentils, and 250 g kidney beans daily for 3 days. Urine was collected during the 2 days before, 3 intervention days, and 2 days after the intervention and analyzed for phytoestrogen status. Subjects filled in food diaries throughout the study period. Urinary daidzein, but not equol and enterolactone, levels increased during the 7-day period. There was no change in energy, protein, sugar, or total fat intake, but an increase in carbohydrate, fiber, and starch intake. There was a change in the distribution of fat intake with a fall in saturated fat and cholesterol intake. Iron intake significantly increased, although vitamin B12 fell significantly. The long-term effects of this diet and the associated health benefits of these changes require further study.
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