Boning up on soya

Some studies suggest that plant hormones found in soya foods (isoflavones) can help reduce bone loss and lower the risk of osteoporosis. However the evidence is somewhat inconsistent. New research that looks at the current research in its entirety concludes that soya isoflavones can significantly reduce bone loss in the spine. The effects were more significant when more than 90 mg a day of isoflavones were consumed. Tofu, tempeh, soya milk, meat substitutes and soya flour are all good sources of isoflavones.

Ma DF, Qin LQ, Wang PY, Katoh R. 2008. Soy isoflavone intake increases bone mineral density in the spine of menopausal women: meta-analysis of randomized controlled trials. Clinical Nutrition. 27 (1) 57-64.