Whey Protein Side Effects » Free Radicals http://wheyproteinsideeffects.net Fri, 30 Sep 2011 09:43:27 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 Which is better for glutathione supplementation…whey protein concentrate or whey protein isolate? http://wheyproteinsideeffects.net/2009/12/22/which-is-better-for-glutathione-supplementation%e2%80%a6whey-protein-concentrate-or-whey-protein-isolate/ http://wheyproteinsideeffects.net/2009/12/22/which-is-better-for-glutathione-supplementation%e2%80%a6whey-protein-concentrate-or-whey-protein-isolate/#comments Tue, 22 Dec 2009 08:32:59 +0000 admin http://wheyproteinsideeffects.net/?p=254 You might have heard of glutathione. It is crucial to the body’s management of oxidative stress. Oxidative stress affects more than 200 different diseases as well as aging. As we get older, glutathione levels decline. So its a common idea that health can be improved in the later years of life by offsetting the age-related decline of glutathione. A number of studies of the health benefits of whey have been published in peer-reviewed medical literature. Much of the benefit of whey comes from its unique ability to increase levels of glutathione at the cellular level. You have to increase the amount of glutathione in the cells of the body because this is where glutathione does its work of eliminating harmful molecules called reactive oxidative species (ROS) and molecular fragments called free radicals. There are different ways of increasing glutathione. Some actually work faster than
whey protein
. For long term use, whey protein is probably best because it supports rather than disrupts the complex glutathione metabolism of the body. Also, it is just milk protein. The long term side effects are minimal if it is mixed properly and used in moderate amounts – about 30 grams per day for an adult getting a nominal amount of exercise. There are probably hundreds of whey protein products on the market. Some are rather expensive. Many are optimized for use by bodybuilders, not for glutathione supplementation. Which is best? The reason why whey protein increases glutathione probably has to do with the fact that it makes the amino acid cysteine available to the cells of the body. Availability of cysteine is the main factor that limits production of glutathione. Whey protein contains cysteine in the form of cystine and gamma-glutamyl-cysteine. In this form, it has a much higher availability than if you were to injest cysteine directly. The two protein components of whey that contain cysteine in this form are immunoglobulin and bovine serum albumin. Oftentimes, protein composition of a whey powder product is not provided the manufacturer. However, if it is, look for about 10% immunoglobulin (IMG) and 10% bovine serum albumin (BSA). This tends to be a sort of “sweet spot” where effectiveness and value are optimal. So which is better. . . whey protein concentrate or whey isolate? The commonly accepted definition of an isolate is that it contains 90% protein by weight or better. Concentrate contains less than 90%. The total amount of protein is not as important as the type of protein. Whey protein isolate is often depleted of the higher molecular weight components described above (BSA and IMG) by the additional processing step. Whey protein concentrate tends to be a better choice.

For more information on determining glutathione supplementation effectiveness as a function of cost, take a look at www. rimkor7. com/lowcost. php. This also website contains resources, products reviews, references to research studies, suggestions for supplements that enhance glutathione supplementation of whey protein, a forum and much more information related to wellness and practical, affordable, and natural ways of supporting our body’s own powerful capacity for health maintenance.
]]> http://wheyproteinsideeffects.net/2009/12/22/which-is-better-for-glutathione-supplementation%e2%80%a6whey-protein-concentrate-or-whey-protein-isolate/feed/ 0 Whey Protein Side Effects http://wheyproteinsideeffects.net/2009/09/21/whey-protein-side-effects/ http://wheyproteinsideeffects.net/2009/09/21/whey-protein-side-effects/#comments Mon, 21 Sep 2009 04:52:44 +0000 admin http://wheyproteinsideeffects.net/?p=16 Is there scientific evidence of whey protein side effects?

Whey protein
is in simple terms liquid globular part of milk. It is obtained when cheese is separated from milk. Whey protein is commercially used as food supplement especially among body builders. The protein can also be used to manage protein malnutrition condition and other immune deficiencies. This is because whey protein supplement is rich in proteins, mineral salts and residual lactose. Proteins are the component of food that is used to build or repair body cells. It is the primary input in growth and development.

Proteins are large molecules which can be broken down to peptides, and further into amino acids. There are twenty amino acids that are used in formation of body parts. There are however only a few essential amino acids. Essential amino acids refer to those amino acids that cannot be manufactured by the body from other acids. The amino acids metabolism results in production of a number of metabolites that may also have side effects.

Whey proteins side effects have been investigated by several nutritional and biochemical experts. The most comprehensive pre-clinical studies have been conducted on rodents serving as guinea pigs. These studies focused on identifying whey protein side effects arising from the byproducts of its metabolism. Naturally, any protein molecule ingested is taken through the protein metabolism cycle that begins at the mouth with release of proteases. The byproducts include the carbohydrate skeletal structure, some fatty acids and peptides. The peptides are further broken down into amino acids. Some of the amino acids may form compounds with other amino acids, carbon structures and fatty acids to generate free radicals that produce negative side effects. However, every metabolism process that is aimed at releasing energy through the ATP pump, will inevitably release free radicals. The formation of undesired compounds and release of free radicals is what may be considered whey protein side effect.

Whey protein has been thought to inhibit the functions of glutathione peptide. It causes whey protein side effect by inhibiting the functions of glutathione as an anti-oxidant. The absorption of free radicals in the cell environment is therefore inhibited. Free radicals may cause side effects by ‘punching holes’ on other cell membranes.

The result of pre-clinical studies on rodents did not reveal adequate evidence to substantiate the claim that whey protein may cause side effects of the same magnitude in humans.

In conclusion, there is no substantive evidence to link whey protein supplement to side effects. It is a safe product for body builders and patients of malnutrition.

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