其他证据中等

Soy isoflavones

别名: genistein, daidzein, phytoestrogens

Soy isoflavones (genistein, daidzein, glycitein) are plant compounds with weak oestrogen-like activity, found in soy and soy foods. They are used mainly to ease hot flushes in menopause.

用途

easing menopausal hot flushes – moderate evidence, the effect is modest and slow to appear
bone density after menopause – weak to moderate evidence, mixed results
cholesterol support (soy as a food) – weak evidence

剂型及区别

soy extract

isoflavone content is given in mg per serving – check the label

fermented forms (aglycones) and S-equol

may work better in people who do not produce equol; evidence is limited

soy foods (tofu, tempeh, soy milk)

natural source of isoflavones with protein

何时服用

With food, split through the day; the effect is judged after 2–3 months.

适合搭配

Calcium, vitamin D, a fibre-rich diet (gut bacteria convert daidzein into equol).

不宜同服 / 需错开

Keep at least 4 hours apart from thyroid medication (levothyroxine). Take care with blood thinners (warfarin) and hormone therapy.

注意事项

With a history of breast or uterine cancer, hormone-sensitive conditions or thyroid disease, consult your doctor. Not suitable in pregnancy or breastfeeding; if you take medicines, consult your doctor.

安全性

EFSA did not conclude harm at the doses studied in postmenopausal women, but long-term data are limited; do not exceed the label dose.

实用建议

If you eat soy foods regularly, count them towards your total isoflavone intake.

含 Soy isoflavones 的产品 1

Soy isoflavonesextract女性健康激素骨骼

如何理解证据评级

证据充分证据中等证据薄弱无证据

充分 = 多项高质量人体研究或官方推荐；中等 = 有前景但研究规模较小；薄弱 = 研究少或结果不一；无证据 = 说法未被证实。

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