Types of Protein Found in Nutrition Bars

If you pay attention to the product labels, you notice that different brands use different kinds of protein in their bars. And they all come with slightly different benefits at a different cost. Here are the most common protein types:


Whey Isolates

Whey Isolates are being absorbed by the body very quickly, which makes them perfect for body builders, who need protein in their system to rebuild muscle tissue after work outs. One of the main components, water, has already been removed from isolates. They yield a very high percentage (min. 90%) of pure protein and therefore are at a higher price point.


Whey Concentrate

Whey concentrate is inexpensive and very common in regular protein powders and bars. Some people may digest this form of protein a little harder and could feel a little bloated afterwards.


Hydrolysate Protein

The highest quality on the market and therefore also most expensive. Hydrolysates are enzymatically predigested for maximal speed of absorption. It’s very easy to digest and feeds your muscles with nutrients instantly.


Casein Protein

Casein protein serves a very slow digestion, which is benefitial, if you want to stay full for a longer period of time during the day. It’s also great to slowly feed your muscles for several hours while you’re sleeping. Casein protein is very high in glutamine to help your body recover faster and boost your immune system.


Soy Protein

Loaded with Glutamine and BCAAs, soy is the source of protein for vegetarians. Although not preferred by bodybuilders, it can be used pre and post workout.


Milk Protein Isolate

Like soy protein, milk protein isolates are full of amino acids and consist of both casein and whey proteins.  Even though it’s not the preferred choice of protein for many people, it’s usually found in blends of multiple types of protein.


Egg Albumin

This old-school source of protein was common when protein powders did not exist yet. Found in egg whites, this protein is rich in amino acids and is used in many protein blends and meal replacement products.