Optimum Nutrition Gold Standard Isolate Protein 3 lb
- 25 grams of protein per serving
- 5.5 grams of BCAAs per serving, naturally occurring
- 1 gram of carbohydrates per serving
- Hydrolyzed and ultra-filtered whey protein isolate
- Banned substance tested
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A hydrolyzed whey isolate with high protein and very little carbohydrate, tested for banned substances. Flavor, tub size and allergen details are not in the bullets.
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ASIN: B07MMQNXTKCategory: Whey Protein Powders
Overview
Lifters and athletes who want a lean protein shake get a hydrolyzed, ultra-filtered whey isolate from Optimum Nutrition. Each serving is mostly protein with very little carbohydrate, and the powder is tested for banned substances.
High protein with very low carbohydrate per serving is the reason to choose an isolate like this. Flavor, tub size, lactose and allergen details are not in the bullets.
Who it's for
Athletes in tested sports and people tracking carbohydrates fit this isolate. Vegans and anyone avoiding milk proteins should choose a plant protein.
Pros and cons
- High protein per serving
- Very low carbohydrate
- Hydrolyzed and ultra-filtered
- Naturally occurring BCAAs
- Flavor and tub size not in bullets
- Dairy based, not for vegans
Performance notes
Ultra-filtration concentrates the protein, which is why carbohydrate per serving is so low. The BCAAs come from the whey itself rather than added powder.
Specifications
| Brand | Optimum Nutrition |
|---|---|
| Protein per serving | 25 grams |
| Bcaa per serving | 5.5 grams |
| Carbohydrates per serving | 1 gram |
| Testing | Banned substance tested |
| Protein type | Hydrolyzed and ultra-filtered whey protein isolate |
Frequently asked questions
How do you mix Optimum Nutrition Gold Standard Isolate?
Mixing directions are not in the bullets. Check the tub label for the liquid amount per serving.
Does ON Gold Standard Isolate have added BCAAs?
No. The 5.5 grams of BCAAs per serving are naturally occurring.
Is ON Gold Standard Isolate plant based?
No. It is whey protein isolate, a dairy protein.