Isopure Zero Carb vs Optimum Nutrition Gold Standard 100% Isolate
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Optimum Nutrition Gold Standard 100% Isolate#2 in Measured specs Bars scale to the largest value shown. “Not listed” = not confirmed on the label or listing.
What’s in it
- 25 g protein
- 0 g net carbs
- 25 g protein
- ~1 g carbs
Whey isolate with near-zero carbs per scoop.
Ultra-filtered isolate with about 1 g carbs per serving.
Evidence note
Keto Protein Powder: For a low-carb or keto diet, the key numbers are net carbs and sugar per serving. This list ranks low-carb protein powders; it is not dietary advice.
General information on the main ingredient, not a health claim about any product. These statements have not been evaluated by the FDA. Talk to your doctor before starting a supplement.
Winner by category
| Protein per serving | Tie |
|---|---|
| Sugar per serving | Isopure Zero Carb |
| Higher in our ranking | Isopure Zero Carb (#1) |
“Winners” are only on confirmed numbers (higher is better, except sugar, footprint and price tier). They are not an overall verdict.
See all 10 keto protein powder
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Talk to your doctor or pharmacist before starting any supplement, especially if you take medication, are pregnant or nursing, or have a medical condition.