Whey protein is a byproduct from making cheese out of cow’s milk. The protein from whey is absorbed into the body greater than any other food available. The more absorbent the protein the greater the biological value. The most popular forms are Isolate Whey and Hydrolysates Whey because they are even more pure and digestible. The general form of Whey is Whey Concentrate and has the orignal levels of bioactive compounds, and carbohydrates in the form of lactose which are removed in Isolate Whey Protein. The body may only absorb 15 grams of Whey Concentrates at a time.
There are different benefits depending on the individual’s response to the different types of whey. Those who want just pure protein will usually drink Whey Protein Isotates because they are 90% pure protein by weight. Some whey products are a mixture of Whey Protein Isolates, Whey Protein Concentrates, and digestive compounds added back into the mixture such as Lactase and Aminogen. These digestive additions are important as shown in “An open label study to determine the effects of an oral proteolytic enzyme system on whey protein concentrate metabolism in healthy males”; showing that patented blends of digestive proteases do increase the absorption rate of processed Whey Protein Concentrate (Journal of the International Society of Sports Nutrition 5.10; July 24, 2008: p.10.).
It has been said that Whey is the best whey to boost health: so much more than a muscle builder, whey protein is shaping up to be a superfood with multiple benefits for your health. Among whey’s unique features are its peptides, tiny chains of amino acids that are smaller than protein molecules and therefore easier for our bodies to assimilate. “Some of these help your body to burn fat, more so than other foods,” says Zemel, “and these peptides are ACE inhibitors, which control blood pressure.” Some of these peptides improve certain aspects of immunity both in the digestive tract and in the body (Vera Tweed. Better Nutrition. April 2007 v69 i4 p48). Want to loose fat and gain muscle then supplement with whey protein.
A Protein supplementation study, Effect of protein source and resistance training on body composition and sex hormones may signify males may want to use Whey protein over soy. Methods included 50 g per day of one of four different protein sources (Soy concentrate; Soy isolate; Soy isolate and whey blend, and Whey blend only) in combination with a resistance-training program. The results of this study showed a significant increase in lean body mass independent of protein source. No significant differences were observed between groups for total and free testosterone, SHBG, percentage body fat, BMI or body weight. Estradiol (estrogen) was significantly lower in the whey blend group (Journal of the International Society of Sports Nutrition 4.4 (July 23, 2007): p.4). This seems to support supplementing with whey protein if the individual is male and plans on supplementing with large amounts of protein in his diet.
So, who should be supplementing with whey protein? That answer may be everyone, unless if someone is alergic to it. The biological components of whey, including lactoferrin, beta-lactoglobulin, alpha-lactalbumin, glycomacropeptide, and immunoglobulins, demonstrate a range of immune-enhancing properties. In addition, whey has the ability to act as an antioxidant, antihypertensive, antitumor, hypolipidemic, antiviral, antibacterial, and chelating agent. The primary mechanism by which whey is thought to exert its effects is by intracellular conversion of the amino acid cysteine to glutathione, a potent intracellular antioxidant. A number of clinical trials have successfully been performed using whey in the treatment of cancer, HIV, hepatitis B, cardiovascular disease, osteoporosis, and as an antimicrobial agent. Whey protein has also exhibited benefit in the arena of exercise performance and enhancement (Marshall, Keri. “Therapeutic applications of whey protein.” Alternative Medicine Review 9.2; June 2004).
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