Onion vs Potato
Side-by-side macro comparison. Onion vs Potato per their standard serving sizes.
Macro Comparison Table
| Macro | Onion | Potato | Difference |
|---|---|---|---|
| Calories | 44 cal | 161 cal | -73% Onion |
| Protein | 1.2g | 4.3g | -72% Onion |
| Carbs | 10g | 37g | -73% Onion |
| Fat | 0.1g | 0.2g | -50% Onion |
Differences shown relative to Onion. Positive = Onion has more.
Quick Take
Onion delivers 44 calories per serving with 1.2g protein, 10g carbs, and 0.1g fat. Potato delivers 161 calories with 4.3g protein, 37g carbs, and 0.2g fat. The most meaningful difference: Onion saves 117 calories per serving — meaningful over a week of meals. Both deliver similar protein density.
When to Pick Each
For Cutting / Weight Loss
When cutting on a tight calorie budget, Onion gives you 117 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), Potato delivers more grams of protein per calorie consumed.
For Bulking / Muscle Gain
For muscle gain, you want calories AND protein. Potato brings 161 calories — useful when you're chasing a surplus and struggling to eat enough. Potato delivers 4.3g 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
Onion fits cleanly into keto with only 10g carbs. Potato at 37g carbs uses significantly more of your daily 20-30g carb budget.
Frequently Asked
Which has more protein, Onion or Potato?
Potato has more protein: 4.3g vs 1.2g per serving. That's a difference of 3.0999999999999996g.
Which has fewer calories, Onion or Potato?
Onion has 44 calories per serving vs 161 calories in Potato — a difference of 117 calories.
Is Onion or Potato better for keto?
Onion is the better keto choice at 10g carbs per serving vs 37g carbs in Potato.
Is Onion or Potato better for weight loss?
For weight loss, Onion gives you more calorie flexibility (117 cal less per serving). For preserving muscle during a deficit, Potato delivers more protein per calorie. Most people on cuts benefit from Potato.
Which Is Better for Your Goal?
🔥 Weight Loss
Onion
Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.
💪 Muscle Gain
Potato
Higher absolute protein per serving better supports muscle protein synthesis.
🥑 Low-Carb / Keto
Onion
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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