Soy Protein Vs Whey ProteinSoy Vs Whey proteinSoy protein vs Whey Protein...
Whey protein is pretty incredible stuff, and we use it here at Nutritional Supplement Info ourselves. However, there are certain advantages of soy over whey as well, and that's why we supplement with soy protein too.
Soy vs Whey Protein...first, let's cover one fantastic fact about soy protein.
Soy protein is a "complete" protein. Complete simply means that soybeans contain all the essential amino acids for human health -- and they must be supplied by the diet because they cannot be produced by the human body.
While some other proteins are complete ones, many of them are not.
Whey protein, on the other hand, is also a complete protein, and rapidly and easily absorbed by the body, making it a great source.
What this means is that if you want to put on lean muscle (and who doesn't) there is probably no difference between Soy Protein Vs Whey Protein.
However, we will share a guest article by a Medical Doctor on one potential difference between soy vs whey protein. It just might convince you to add some soy protein to your diet too, even if you still want to use whey as well like us.
Soy Reduces Harmful Free Radical Formation During Exercise Better than Whey Protein.
By Dr. Aaron Tabor, MD
Medical Research Director at Revival Soy - The #1 Doctor-Recommended Soy Protein Supplement
Evidence from recent clinical trials suggests that soy may have added exercise benefits compared to other protein sources, in particular whey protein (a popular protein among many athletes). Researchers from Ohio State University have just completed a study examining the effect of soy protein on muscle weight gain and “antioxidant status”.(1) A higher antioxidant status means that your body is able to better neutralize free radicals. Free radicals produced during exercise are harmful to muscle and other tissues. ------------------------------------------ In the study, men taking part in a weight training class were given protein bars containing either soy protein or whey protein (33 grams/day) for 9 weeks. The men consuming soy protein maintained a healthy antioxidant status, while the antioxidant status of men consuming whey protein actually worsened. By reducing free radical production during exercise, soy protein may help lessen muscle damage and fatigue. Both protein sources increased muscle mass of the men. ------------------------------------------ Another recent study tested the effects of soy protein and whey protein on “lipid peroxides” (higher levels are considered worse), in men performing moderate intensity, weight resistance exercise.(2) This study also compared soy to whey protein (men consumed 40 grams/day for 4 weeks prior to each exercise session). Lipid peroxide levels were reduced in the soy protein group as early as 5 minutes after the exercise session, while peroxide levels were not reduced until 24 hours after exercise in the whey protein group.
In summary, these new studies demonstrate that soy protein can help build muscle mass similar to more commonly used protein sources. However, soy protein provides the added benefit of reducing oxidative stress through the antioxidants naturally present in soy (isoflavones and saponins). Numerous studies indicate that soy isoflavones may be responsible for soy’s antioxidant properties.(3) Isoflavones are not found in whey protein or other common protein sources.
Medical References:
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