Whey protein is one of the two proteins found in milk, casein being the other one. During the process of making cheese, an enzyme is added to the milk to make it curdle and the curds (casein) and whey separate. Whey protein is the water-soluble part of milk.
Whey is used as a protein powder supplement. It is very useful for hitting daily protein goals. Whey protein comes in different grades and purities. There are 2 grades of whey protein : whey concentrate and whey isolate. It can be purchased as whey concentrate, as a blend of whey concentrate and isolate or as 100% whey isolate.
Whey concentrate has been filtered once, so it is much higher in protein than milk, but typically isn’t as purified, so it still contains fats and carbs leftover from the milk. Whey Protein Isolate is the highest grade of Whey Protein. It has gone through multiple filtration processes making it very pure. It contain virtually no lactose, so it can be digested by lactose intolerant people. It is also very low in fat and carbs. It also absorbs faster than regular Whey Concentrate making it the ideal for when your body is starving for protein, such as after a hard workout mixed with a source of powdered carbs or upon waking up in the morning in a smoothie.
If you are looking for a great tasting, easy to blend and fast digesting whey protein isolate we recommend you try EFX Whey protein isolate.