Soy appears to do nothing to relieve the symptoms of menopause, scientists say, despite the high hopes of many.
A controlled study involving nearly 250 US women going through "the change" found soy tablets did not abate hot flushes or bone density loss. The tablets were no better than placebo over the two-year-long investigation, Archives of Internal Medicine reports. But experts said other studies have shown soy can ease menopause symptoms.
The dose given in the latest trial was twice that normally ingested by people with soy-rich diets. Soy products like tofu contain natural plant oestrogens and experts have suggested that these might help women going through the menopause whose own oestrogen levels are dwindling.