The Secret of Soy,What is Soy Isoflavones?Function of Natural Genistein?Soy Bean Extract.

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Soy Isoflavones Help Prevent Cognitive Decline.

Soy Bean Extract INCI Name Glycine Soja Extract Soy Isoflavones Genistein Daidzein CAS 84776-91-0 Genistein CAS 446-72-0 Daidzein CAS486-66-8 photo picture image Scientific research on the effect of soy isoflavones on cognitive function is limited. The only published observational study that examined the relationship between soy intake and cognitive function found that Hawaiian men who reported consuming tofu at least twice weekly during midlife were more likely to have poor cognitive test scores 20-25 years later than those who reported consuming tofu less than twice a week. In contrast, the results of several small clinical trials in postmenopausal women suggest that increasing soy isoflavone intake may result in modest improvements in performance on some cognitive tests for up to six months. Postmenopausal women given soy extracts providing 60 mg/d of soy isoflavones for 6-12 weeks performed better than women given a placebo on cognitive tests of picture recall (short-term memory), learning rule reversals (mental flexibility) and a planning task. In a longer trial, postmenopausal women given supplements that provided 110 mg/d of soy isoflavones for six months performed better than women given placebos on a test of verbal fluency.

 However, in the largest placebo-controlled trial in postmenopausal women to date, daily intake of soy protein providing 99 mg of isoflavones for one year did not affect performance on a battery of cognitive function tests, including tests for memory, attention, verbal fluency and dementia.

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citations1.The Secret of Soy,What is Soy Isoflavones?Function of Natural Genistein?Soy Bean Extract.

last edit date:6th,May.2009.