Nature’s Way Soy Isoflavones Standardized Description: Non-GMO Soy extract is standardized to 40% isoflavones. These safe and gentle phytoestrogens are especially helpful to women during the time of perimenopause. Nature’s Way Standardized Soy extract provides genistein, daidsein and glycitein in their naturally occurring ratios. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.