ggr new site logo

Onnit Whey Protein

We test and review fitness products based on an independent, multi-point methodology. If you use our links to purchase something, we may earn a commission. Read our disclosures

Onnit Whey Protein
GGR Score: 4.4

Product Highlights

  • 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
Categories: Protein Powder, Supplements

In-Depth Review

Onnit Grass Fed Whey Isolate Review (2026): Expert Tested and Approved

Onnit Grass Fed Whey Isolate Review (2026): 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

Pros
  • Low in carbs
  • High in leucine
  • Whey isolate gets to muscles faster
  • Non-GMO
  • Third-party tested by Informed Sport, so athletes can safely take it
Cons
  • High cost per serving
  • Can cause digestive issues for some people
  • The Mexican Chocolate flavor has mixed reviews

Specs

Protein SourceWhey protein isolate
Carbs Per ServingUp to 4 g
Fats Per ServingUp to 2.5 g
Rating4
Protein Per Serving20 g
Calories per serving120
Available FlavorsVanilla, Mexican Chocolate
NicknameOnnit Whey
Protein per serving20 g
TypeWhey isolate
Price per serving$1.99
Flavors2 flavors

Product Summary

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.


Customer Reviews

No Reviews Found

Be the first to review this product!