The science of soy: What do we really know

Abstract

The wide variety of soy-based foods, beverages, and nutraceuticals now readily available tout this versatile food's purported benefits of preventing cardiovascular disease, cancer, and osteoporosis, as well as treating menopausal symptoms. Many of soy's effects are attributed to its isoflavone components, but the strength of the relationships and whether the effects are beneficial are strongly debated; one of the most heated debates is over the safety of soy-based infant formula. Most researchers agree that we are only just beginning to understand the nature of soy, and that far more human data are needed in order to make solid recommendations regarding its health benefits.