Isopure Zero Carb 100% Whey Protein Isolate vs Quest Nutrition Protein Powder - Vanilla Milkshake
Quest Nutrition Protein Powder - Vanilla Milkshake is the stronger overall pick in this matchup. Quest Nutrition Protein Powder - Vanilla Milkshake wins here because it offers the stronger user rating (4.5 vs undefined).
Full side-by-side of protein, calories, macros, and protein density for Isopure Zero Carb 100% Whey Protein Isolate and Quest Nutrition Protein Powder - Vanilla Milkshake below.
Isopure

Protein
25g
Calories
110
Protein per 100 cal
22.7g
Pros
- Competitive overall macros for a protein powder snacks option.
Cons
- Weaker review score: 0.0 vs 4.5.
Quest Nutrition

Protein
25g
Calories
110
Protein per 100 cal
22.7g
Pros
- Stronger shopper rating: 4.5 vs 0.0.
Cons
- There is no major downside in this head-to-head, so the choice comes down to taste and retailer preference.
| Metric | Isopure Zero Carb 100% Whey Protein Isolate | Quest Nutrition Protein Powder - Vanilla Milkshake |
|---|---|---|
| Protein | 25g | 25g |
| Calories | 110 | 110 |
| Carbs | — | 3gBest |
| Fat | — | 1gBest |
| Protein per 100 cal | 22.7g | 22.7g |
Quest Nutrition Protein Powder - Vanilla Milkshake is the stronger overall pick in this matchup.
Quest Nutrition Protein Powder - Vanilla Milkshake wins here because it offers the stronger user rating (4.5 vs undefined).
Choose Isopure Zero Carb 100% Whey Protein Isolate if you care more about competitive overall macros for a protein powder snacks option.
Choose Quest Nutrition Protein Powder - Vanilla Milkshake if you care more about stronger shopper rating: 4.5 vs 0.0.
Frequently Asked Questions
Isopure Zero Carb 100% Whey Protein Isolate and Quest Nutrition Protein Powder - Vanilla Milkshake both deliver 25g of protein per serving.
Isopure Zero Carb 100% Whey Protein Isolate and Quest Nutrition Protein Powder - Vanilla Milkshake are tied at 110 calories per serving.
Isopure Zero Carb 100% Whey Protein Isolate and Quest Nutrition Protein Powder - Vanilla Milkshake are effectively tied on protein density at about 22.7g of protein per 100 calories.
Quest Nutrition Protein Powder - Vanilla Milkshake is the stronger overall pick in this matchup. Quest Nutrition Protein Powder - Vanilla Milkshake wins here because it offers the stronger user rating (4.5 vs undefined). Because they are in the same category, this is a direct apples-to-apples comparison.
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