Onnit Whey Protein

onnit whey protein bottle black

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  • Sourced from New Zealand grass-fed cows
  • Made with whey protein isolate to filter out fats and carbs
  • Offers a complete amino acid profile
  • Website offers a subscription option to save money and auto-ship
Manufacturer: Categories: ,

In-Depth Review

Onnit Grass Fed Whey Isolate Review (2024): Expert Tested and Approved

Onnit Grass Fed Whey Isolate Review (2024): Expert Tested and Approved

In this Onnit Grass Fed Whey Isolate review, we’ll dig into our experience testing the protein powder for several weeks. Read the full review.

Pros & Cons

What we like ...
  • Low in carbs
  • High in leucine
  • Whey isolate gets to muscles faster
  • Non-GMO
What needs improvement ...
  • High cost per serving
  • Can cause digestive issues for some people
  • The Mexican Chocolate flavor has mixed reviews

Product Summary

Onnit Whey Protein powder is grass fed and made with whey isolate, which Onnit claims can be delivered to your muscles more efficiently. Packing 20 grams of protein and low in sugar, this powder is macro-friendly.

While this protein powder does feature grass-fed whey, this powder also contains sunflower oil, stevia, and maltodextrin, which have been known to cause digestive discomfort. Therefore, this may not be the best option for you if you are looking for something easier on your stomach.


Servings per container

30 servings

Protein per serving

20 g



Price per serving


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GGR Community Reviews

Onnit Whey Protein

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      Onnit Whey Protein is a great protein option for those looking for a grass-fed protein, however there are cleaner grass-fed protein powders on the market that are lower in cost.