Isopure Zero Carb 100% Whey Protein Isolate vs Optimum Nutrition Gold Standard 100% Whey Protein Powder
Isopure Zero Carb 100% Whey Protein Isolate edges ahead on a protein + calorie + rating blend. Isopure Zero Carb 100% Whey Protein Isolate scores higher in that blend because it offers more protein per serving (25g vs 24g), a lighter calorie hit (110 vs 120), more protein per 100 calories (22.7g vs 20.0g).
Full side-by-side of protein, calories, macros, and protein density for Isopure Zero Carb 100% Whey Protein Isolate and Optimum Nutrition Gold Standard 100% Whey Protein Powder below.
Isopure
Wins on: Protein, Calories, Sugar, Protein per 100 cal
Protein
25g
Calories
110
Protein per 100 cal
22.7g
Pros
- More protein per serving: 25g vs 24g.
- Lower calorie load: 110 calories vs 120.
- Better protein density: 22.7g protein per 100 calories.
Cons
- Weaker review score: 4.4 vs 4.6.
Optimum Nutrition
Protein
24g
Calories
120
Protein per 100 cal
20.0g
Pros
- Stronger shopper rating: 4.6 vs 4.4.
Cons
- Less protein per serving: 24g vs 25g.
- Higher calorie count: 120 vs 110.
| Metric | Isopure Zero Carb 100% Whey Protein Isolate | Optimum Nutrition Gold Standard 100% Whey Protein Powder |
|---|---|---|
| Protein | 25gBest | 24g |
| Calories | 110Best | 120 |
| Sugar | 0gBest | 1g |
| Fiber | — | — |
| Sodium | — | — |
| Carbs | — | — |
| Fat | — | — |
| Protein per 100 cal | 22.7gBest | 20.0g |
“Healthier” depends on your goal — here’s the real winner on every number we track, so two people with different priorities can both get the right answer.
- Protein: Isopure Zero Carb 100% Whey Protein Isolate wins, 25g vs 24g.
- Calories: Isopure Zero Carb 100% Whey Protein Isolate wins, 110 vs 120.
- Sugar: Isopure Zero Carb 100% Whey Protein Isolate wins, 0g vs 1g.
- Protein per 100 cal: Isopure Zero Carb 100% Whey Protein Isolate wins, 22.7g vs 20.0g.
Isopure Zero Carb 100% Whey Protein Isolate edges ahead on a protein + calorie + rating blend.
Isopure Zero Carb 100% Whey Protein Isolate scores higher in that blend because it offers more protein per serving (25g vs 24g), a lighter calorie hit (110 vs 120), more protein per 100 calories (22.7g vs 20.0g). This blend won’t match your priorities if sugar, carbs, or diet fit matter more to you than protein, calories, and rating.
Frequently Asked Questions
Isopure Zero Carb 100% Whey Protein Isolate has more protein per serving: 25g versus 24g.
Isopure Zero Carb 100% Whey Protein Isolate is the lighter option at 110 calories, compared with 120 calories for the alternative.
Isopure Zero Carb 100% Whey Protein Isolate is the more protein-dense pick at about 22.7g of protein per 100 calories.
"Healthier" depends on your goal: Isopure Zero Carb 100% Whey Protein Isolate has more protein (25g vs 24g); Isopure Zero Carb 100% Whey Protein Isolate has less sugar (0g vs 1g); Isopure Zero Carb 100% Whey Protein Isolate is lower in calories (110 vs 120). Neither is objectively the "healthiest" for everyone — see the pick-by-priority breakdown above, or try our free AI Snack Finder to get matched to your specific goal.
Isopure Zero Carb 100% Whey Protein Isolate edges ahead on a protein + calorie + rating blend. Isopure Zero Carb 100% Whey Protein Isolate scores higher in that blend because it offers more protein per serving (25g vs 24g), a lighter calorie hit (110 vs 120), more protein per 100 calories (22.7g vs 20.0g). Because they are in the same category, this is a direct apples-to-apples comparison.
Get weekly protein snack picks
Data-ranked comparisons and new picks. No spam — unsubscribe anytime.