SOY DOSING
The following doses have been studied in scientific research:
BY MOUTH:
For high cholesterol: 20-50 grams per day of soy protein.
For preventing weak bones (osteoporosis): 40 grams per day soy protein containing 2-2.25 mg isoflavones per gram.
For menopausal symptoms such as hot flashes:
20-60 grams per day of soy protein providing 34-76 mg isoflavones.
concentrated soy isoflavone extracts providing 50-120 mg/day of isoflavones.
Genistein, a soy isoflavone: 54 mg per day.
For protein in the urine of people with kidney disease: a diet limited to 700-800 mg/kg soy protein daily has been used.
For diarrhea in infants, soy fiber fortified formula containing 18-20 grams of soy protein per liter.
For type 2 diabetes, touchi extract 300 mg three times daily. Touchi is a traditional Chinese food prepared from soybeans.
For type 2 diabetes in postmenopausal women, 30 grams of soy protein daily, containing 132 mg of phytoestrogens daily for up to 12 weeks.
Soy foods contain variable amounts of isoflavones. Soy flour contains 2.6 mg isoflavones per gram of soy flour, fermented soybeans contain 1.3 mg per gram, boiled soybeans contain 0.6 mg per gram, soymilk contains 0.4 mg per gram, soybean curd contains 0.5 mg per gram, fried soybean curd contains 0.7 mg per gram, soybean paste contains 0.4 mg per gram, and soy sauce contains 0.016 mg per gram.