Definition of "isoflavone" [isoflavone]

• One of a family of phytoestrogens found chiefly in soybeans that is under investigation for its preventive health benefits as a nutritional supplement. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Messina M et al. Estimated Asian adult soy protein and isoflavone intakes."
• "Some soy protein bars say they guarantee their isoflavone content to be 3.4 mg per gram of protein, so a bar that contains 14 grams of soy protein would provide 47.6 mg isoflavones."
• "First you should know that isoflavone content in soybeans can vary from crop to crop, so we are dealing with averages."