Good News About Soy

As an athlete, you want to get your protein in, but for those who are vegetarian or lactose sensitive there aren't too many complete protein sources. Your best choice by far is soy protein isolates. In addition to being a complete protein source, they're low in fat and sugar, and completely free of cholesterol and lactose.

Soy used to have a bad rap with bodybuilders because its isoflavones bind with estrogen receptors, potentially interfering with the metabolism of both male and female hormones. A recent study conducted on weight training males with an average age of 30 suggests that soy does not decrease blood testosterone levels or prohibit lean mass gains. In this Miami Research Associates test, 20 participants took 50 grams of a soy concentrate/isolate and whey protein blend for 12 weeks. Although this was a small study, and more research is needed, the results seemed to debunk typical gym assumptions about soy protein.

The Bigger Picture: For those who want nothing but the best, Optimum Nutrition's 100% Soy Protein provides 25 grams of great tasting, easy digesting protein, all 8 essential amino acids and nearly 2 grams of muscle-building arginine per serving. It's great for post-workout supplementing and offers the added benefit of promoting heart health.
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