ONNIT Grass-Fed Whey Protein Review 

ONNIT grass fed whey protein is among the best in the market but before we review this product, it’s important to understand the science behind whey protein and to find out if there are any differences between normal whey protein and grass-fed whey protein. Let’s take a look.

You can also see it listed as the #1 PICK on our Best Protein Powder for Lactose Intolerant page.

What Is Whey Protein?

Whey protein is a pure form of protein that is derived from the milk of cows. Milk has two types of proteins which includes whey and casein. Whey can be derived as a byproduct of making cheese or can be separated from casein in a different process.

Body builders are big fans of whey protein and with good reason. It contains all the 9 essential amino acids while eliminating lactose. It can thus be used by people who are lactose intolerant and has proven an excellent way to provide the muscles with the nutrients they need to grow rapidly after a workout.

Some Benefits of Whey Protein

  • Helping in weight loss

Whey protein has been found to help people who are dealing with weight issues to lose fat while being able to maintain their lean muscle mass. Normally losing weight would mean losing both muscle mass and fat.

  • Lowering cholesterol levels

When overweight people consume whey protein, studies have shown a significance decrease in the lipid and insulin levels. The total amount of cholesterol also drops.

  • Lowering the blood pressure

People with high blood pressure can benefit from having whey protein as it has been shown to have positive effects at lowering the blood pressure. This reduces the chances of getting strokes and cardiovascular diseases.

Types of Whey Protein

There are three main types of whey protein. These include whey protein Isolate WPI, whey protein concentrate WPC and whey protein hydrolysate WPH. What is the difference?

Whey protein concentrate has low levels of both fats and carbohydrates. This determines how much protein is contained in the concentrate and can range from 30 percent to 90 percent.

Whey protein isolate undergoes more processing to remove traces of fat or lactose. The result is 90% protein concentration or more.

Whey protein Hydrolysate as the name suggests has gone through hydrolysis. The body performs this process to be able to assimilate the protein. This makes this type of protein easy to digest than the other two.

Difference Between Regular and Grass-Fed Whey Protein Isolate

It is safe to assume that the nutritional value of the milk of grass fed cows is different and superior to that produced by cows that have been fed grain. Indeed, grass-fed cows have access to a diverse range of nutrients while those raised in commercial plots only have access to grains and a bit of greenery.

Studies have shown that grass-fed cows’ milk contains more omega-3 fatty acids which reduce inflammation while grain fed cows contain more omega-6s. These have been linked with many diseases that continue to plague the western world.

So, if you had a choice, and you do, between the two types of whey protein isolates, go for the grass-feed variety such as the ONNIT grass-fed whey protein. Speaking of which lets take a look at it now.

The ONNIT Grass-Fed Whey Protein 

With this protein supplement you get all 9 of the essential amino acids that are required not only to build muscle but to maintain normal body functions. After training, the muscles receive a pure dose of nutrients helping them recover quickly and grow quickly.

The ONNIT grass fed whey protein comes in two main flavors which include vanilla and Mexican chocolate.

The vanilla contains a total of 110 calories per serving.  It has 20 grams of whey isolate protein which is a pure form of protein that is easily absorbed into the body. There are however a few traces of carbohydrates at 3 grams which means that it may not be the purest protein around.

The Mexican chocolate flavor has an even higher carb profile at 5grams for every serving. The amount of protein isolate is 20 grams and has a total of 120 calories.

The 20 grams of whey protein will assist you in your workout to achieve faster results. Your muscles will receive all the nutrition they need to maintain proper form allowing you to bulk up.

Another benefit of the ONNIT grass-fed whey protein is the leucine content. This is a special type of amino acid known as a branched-amino acid. It helps to signal protein synthesis which in turn gives you more endurance.

In fact, there is more leucine in the ONNIT whey protein than there is in milk or eggs. When you are done with your training, your muscles will start the recovery process as soon as they get the nutrients they need. Since this is an easily digestible and absorbable protein, the healing process is faster.

Whey protein is especially useful to people who like to workout every single day. The more the muscles are under strain the more they need to be fed.

This is protein that is derived from cows that are fed mainly grass. The benefit of this is that there are more nutrients in the milk.

Unlike the cows that that are fed grain which have little access to other types of nutrients, the New Zealand cows from where the milk is sourced get plenty of nutrients from grazing which improves the quality of their milk and any products that are derived from it.

Lactose intolerant athletes need not worry as there is no lactose in the ONNIT grass-fed whey protein. Sugar and gluten is also removed which results in a product that is easy to digest.


  • Contains all the essential 9 amino acids
  • It is easy to digest and is quickly absorbed into the body
  • Comes from New Zealand high quality grass fed cows which means it is packed with other essential nutrients
  • There is no lactose


  • There are some traces of carbohydrates which means it is not the purest whey protein supplement.

ONNIT Grass-Fed Whey Protein Review
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