HealthNotes

HealthNotes

Healthnotes offers comprehensive, science-based health and lifestyle information. Written with you in mind, Healthnotes answers the most commonly asked questions with credible, easy-to-understand information — edited by physicians who review over 550 scientific and medical journals to keep content current, factual, and balanced.

Soy

Also indexed as:Protein (Soy), Soy Protein
Soy: Main Image

How to Use It

The ideal intake of soy is not known. Researchers suggest the equivalent of one serving of soy foods per day supports good health, and the benefits increase as soy intake increases.21 Societies in which large amounts of soy are consumed ingest between 50 and 100 mg per day of soy isoflavones. The cholesterol-lowering effects of soy have been observed at amounts as low as 20 grams of soy protein per day, if it replaces animal protein in the diet.22

Where to Find It

Relatively large amounts of isoflavones are present in whole soybeans, roasted soy nuts, tofu, tempeh, soy milk, meat substitutes, soy flour, and some soy protein isolates. In addition, the isoflavones present in soy are available as supplements, in capsules or tablets.

Possible Deficiencies

Although deficiencies do not occur, people who do not consume soy foods will not gain the benefits of soy.

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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2015.

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