Greek Yogurt vs Optimum Nutrition Whey
Side-by-side macro comparison. Greek Yogurt vs Optimum Nutrition Whey per their standard serving sizes.
Optimum Nutrition Whey
per 1 scoop
Macro Comparison Table
| Macro | Greek Yogurt | Optimum Nutrition Whey | Difference |
|---|---|---|---|
| Calories | 59 cal | 120 cal | -51% Greek |
| Protein | 10g | 24g | -58% Greek |
| Carbs | 3.6g | 3g | +20% Greek |
| Fat | 0.7g | 1g | -30% Greek |
Differences shown relative to Greek Yogurt. Positive = Greek Yogurt has more.
Quick Take
Greek Yogurt delivers 59 calories per serving with 10g protein, 3.6g carbs, and 0.7g fat. Optimum Nutrition Whey delivers 120 calories with 24g protein, 3g carbs, and 1g fat. The most meaningful difference: Greek Yogurt saves 61 calories per serving — meaningful over a week of meals. For protein density per calorie, Optimum Nutrition Whey wins at 80% of calories from protein.
When to Pick Each
For Cutting / Weight Loss
When cutting on a tight calorie budget, Greek Yogurt gives you 61 more calories of headroom per serving — that's room for an extra snack, more vegetables, or a higher-protein second portion. If protein density matters more (which it does for preserving muscle on a deficit), Optimum Nutrition Whey delivers more grams of protein per calorie consumed.
For Bulking / Muscle Gain
For muscle gain, you want calories AND protein. Optimum Nutrition Whey brings 120 calories — useful when you're chasing a surplus and struggling to eat enough. Optimum Nutrition Whey delivers 24g of protein per serving, which directly feeds muscle protein synthesis. The best pick depends on whether you need more total calories or more usable protein.
For Keto / Low-Carb
Both Greek Yogurt and Optimum Nutrition Whey are keto-friendly with under 10g carbs per serving.
Frequently Asked
Which has more protein, Greek Yogurt or Optimum Nutrition Whey?
Optimum Nutrition Whey has more protein: 24g vs 10g per serving. That's a difference of 14g.
Which has fewer calories, Greek Yogurt or Optimum Nutrition Whey?
Greek Yogurt has 59 calories per serving vs 120 calories in Optimum Nutrition Whey — a difference of 61 calories.
Is Greek Yogurt or Optimum Nutrition Whey better for keto?
Optimum Nutrition Whey is the better keto choice at 3g carbs per serving vs 3.6g carbs in Greek Yogurt.
Is Greek Yogurt or Optimum Nutrition Whey better for weight loss?
For weight loss, Greek Yogurt gives you more calorie flexibility (61 cal less per serving). For preserving muscle during a deficit, Optimum Nutrition Whey delivers more protein per calorie. Most people on cuts benefit from Optimum Nutrition Whey.
Which Is Better for Your Goal?
🔥 Weight Loss
Optimum Nutrition Whey
Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.
💪 Muscle Gain
Optimum Nutrition Whey
Higher absolute protein per serving better supports muscle protein synthesis.
🥑 Low-Carb / Keto
Optimum Nutrition Whey
Lower carbohydrate content fits keto and low-carb macros without burning your carb budget.
Both fit most balanced diets. These verdicts reflect macro-only comparisons — taste, satiety, cost, and personal preference also matter.
Find Your Personal Macros
The "right" food depends on your individual macro targets. Calculate yours in 60 seconds:
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Other ways Greek Yogurt and Optimum Nutrition Whey stack up:
Full Greek Yogurt guide • Full Optimum Nutrition Whey guide • All comparisons