Whey Protein Vs. Soy Protein

Protein has been garnering extra attention as the health conscious realize the benefits of including protein in their diets. Protein is needed to help rebuild the body’s tissue, which is particularly important to athletes and bodybuilders. In fact, the body is in need of a continual supply of protein in order to repair and to build its tissue. Protein is also essential for producing antibodies, hormones, new muscle tissue, and blood hemoglobin. All protein that is lost within the body must be replaced and protein must be present in order for new tissue to be constructed.

While athletes swear by the ability of animal protein to build muscles, researchers are concerned about the potential effects of animal protein on the liver and the kidneys, as well as the link between animal protein and osteoporosis. As a result, many are turning toward soy protein and whey protein instead. But, what are the benefits, drawbacks, and differences between these different forms of protein? And, how much should you include in your diet in order to garner the benefits you are looking for?

Soy Protein
Soybeans contain high quantities of protein (considered to be of equal quality as animal protein) and also contain substantial amounts of amino acids. In addition, soy has been observed to lower cholesterol. Even the Food and Drug Administration (FDA) has stated 25 grams of soy protein per day can reduce the chances of developing heart disease.

Soy protein has also been found to reduce the symptoms of menopause, to reduce the risk of developing osteoporosis, and to help prevent a number of diseases related to hormonal issues. These include endometrial cancer, breast cancer, and prostate cancer. Soy protein has also been shown to speed up the metabolism of the thyroid, which can help with obtaining a leaner body. If you are intolerant to soy, however, its specific protein can actually have the opposite effect.

A number of soy protein products can be found at health food stores, including food bars, soy burgers, and even soy-based beverages. Those products containing soy protein isolate generally have the highest saturation. Other products containing soy protein include soy flour, whole soybeans, and tofu. Be sure to check the product label in order to determine the amount of soy protein the product contains.

Remember, however, soy isoflavones, which are sold as supplements in health food stores, are not the same substance as pure soy protein. Nonetheless, soy isoflavones possess a number of beneficial effects, such as improving kidney function and preventing bone loss.

If you are not allergic to soy, there are very few side effects to including soy in your diet. In some people, however, consuming soy on a routine basis can lead to an upset stomach and may even cause diarrhea or constipation.

Whey Protein
Like soy protein, whey protein has been shown to provide a number of benefits. For example, clinical studies have shown whey protein can:

• Act as a natural antibacterial or anti-viral
• Assist in maintaining the proper weight
• Reduce the symptoms of Chronic Fatigue Syndrome
• Reduce liver damage
• Improve the function of the immune system
• Improve blood pressure
• Improve athletic performance
• Improve the function of the digestive system
• Reduce gastric mucosal injury