Whey Isolates have a protein count of 90% or more.  They start to be absorbed by the body within 30 minutes and continue being absorbed for additional 3 hours. An isolate protein has a higher percentage, when compared to other proteins. For Muscle Feast Whey isolate, this level of purity is achieved through cold, cross-flow micro and ultra-filtration. This process removes the larger, less absorbable protein molecules; also filtering out fat, lactose, and ash.

Whey concentrates are the most common form of protein that you typically see on retail store shelves.  Compared to isolate, concentrates go through fewer filtration steps with the final product being anywhere from 34-85% pure protein. Whey concentrates will contain more fat, carbs and lactose than whey isolate.  Muscle Feast uses an 80% protein content whey concentrate.

Whey isolate is a much better form of whey protein, because it contains 90% or more protein content and is virtually free of fat and carbohydrates. Our whey protein isolate has a typical protein content of 93% or more.  5% of the remaining 7% is moisture, with the remaining 2% being a combination of trace amounts of sugar, fat, vitamins and minerals.

Whey protein is the name of globular proteins that can be isolated from whey during the cheese making process. Not so long ago, when whey formed during the cheese making process, it was thrown away.  Later it was fed to pigs as a filler.  When pigs started getting big from this food, whey protein found its way into the nutritional supplement world. It is typically a mixture of globinstagers beta actoglobulin (~65%), alpha-lactalbumin (~25%), and serum albumin (~8%), which are soluble in their native culture forms, independent of pH.

Whey has the highest Biological Value (BV) of any known protein. Whey protein has an even higher bioavailability than egg white protein (BV = 98), which is considered the "gold standard" of protein and has a bioavailability rating of 100. Bioavailability refers to how efficiently a substance will be digested and absorbed through the villi in the small intestine into the blood stream while maintaining its original form. Because of this high bioavailability, amino acids from whey protein are thought to enter the blood stream faster than other protein sources.

Unlike whey isolate protein, which is made from whey, micellar casein is derived from cow’s milk.  Many people find micellar protein to be beneficial, because it is slower digesting than other forms of protein. While micellar casein can be a great way to stave off night hunger, it has been shown to have many other benefits; including its ability to activate the production of bioactive peptides in the upper intestine. While some of these peptides will have immunomodulatory properties, other peptides will have antibacterial properties. Micellar protein has also been shown to be the only protein molecule that will prevent the body from going into a catabolic state. Ultimately, micellar casein can elevate amino acid levels in the blood stream for longer periods of time, effectively increasing the amount of time that protein synthesis occurs within the muscle cell.

Both of Muscle Feast’s whey isolates and micellar caseins undergo cold-process microfiltration to prevent denaturing the amino acids. Unlike casein, whey isolate further passes through an ultra-filtration system to remove as many impurities as possible. The result is the highest percentage of non-denatured whey isolate available on the market.

To provide you with a truly accurate product description, we decided to adjust our scoop weights to the actual weight you receive after the item has gone through the shipping process. The label now reflects a scoop measurement with a “packed-down” weight, so that you know exactly what you are getting when you order one of our products.