Proserum® is the most potent native whey protein available:
The vast majority of whey is from grain-fed cows, which has been shown to be of inferior quality to grass-fed cows. Grass-fed cows have 2 to 4 times the amount of omega 3 fatty acids, and is also a rich source of CLA (Conjugated Linoleic Acid). When cows are allowed to graze on fresh pastures alone their milk contains 3 to 5 times more CLA than products from cows fed grain. Proserum whey protein is derived from cows that graze year-round on chemical and pesticide-free natural pastures. Organic is not a helpful standard to look for, because many organic dairies use or supplement with grain during the year.
Proserum® utilizes a proprietary filtration and drying method that involves a minimal amount of processing. The result is a microbial safe product that exceeds all standards and makes it the optimum nutrition whey protein powder. We DO NOT use cross-flow filtration, microfiltration, isolate filtration, hydrolyzation or ion exchange because these methods denature (damage) the original protein components. After use of these commercial methods, the damaged proteins are then filtered out and what remains is a narrow range of "undenatured" proteins that have survived the whey manufacturing process. Additionally the vital protein-bound fats have been removed. Some of these whey protein products are then referred to as undenatured/cold processed. It is not possible to undenature or restore the full biological activity of a protein after it has been damaged.
When considering a whey product it is best to ask for a lab analysis of the whey showing actual percentages of components present from the distributor/manufacturer. You should not receive a range of percentages as that denotes it is not from an actual test. Test results on our products are from an independent lab that performs SDS PAGE Gel method testing.
Proserum® contains exceptional amounts of the Glutathione precursor, covalent bonded Cysteine, which makes it the optimum whey protein. Additionally, it contains the full range and highest levels of the most important protein components: Lactoferrin, Immunoglobulins, Serum Albumin, Active Peptides and Growth Factors making it the optimum nutrition protein powder to support proper immune function.
The Importance of Cysteine
Proserum whey protein contains exceptional levels of naturally occurring Cysteine (covalent bonded Cysteine). It is the optimal component for the intracellular production of Glutathione (GSH). Cysteine is very scarce in our modern diet and therefore Glutathione production is limited and deficiency is prevalent. This makes Proserum one of the best whey protein products available on the market today.
Regarding Whey Protein Concentrate: The Journal Immunology reports: The bioactivity occurs through the ability of the protein concentrate to help replenish Glutathione levels via continuous dietary provision of Glutathione precursors, especially Cysteine, during lymphocyte proliferation, thus supporting an optimal immune response. This process seems to not only increase intercellular levels of Glutathione and precursors at the time of ingestion, but also builds up stores of these substances within the cells which lasts for a substantial post-ingestion time interval." Fidelus RK, Tsan MF. GSH and lymphocyte activation: a function of aging and autoimmune disease. Immunology 61: 503-508, 1987