Is there a recommended daily isoflavone intake?
• At this time, there is not enough research available for the FDA to make specific isoflavone intake recommendations. The FDA has approved a health claim stating that “25 grams of soy protein may help reduce the risk of heart disease.” Twenty-five grams of soy protein contains approximately 50 milligrams of isoflavones. The isoflavone content of soy foods is available on the SANA soy food fact sheets or visit the isoflavone database on the USDA web site.