Onion vs Radish
Side-by-side macro comparison. Onion vs Radish per their standard serving sizes.
Macro Comparison Table
| Macro | Onion | Radish | Difference |
|---|---|---|---|
| Calories | 44 cal | 19 cal | +132% Onion |
| Protein | 1.2g | 0.8g | +50% Onion |
| Carbs | 10g | 4g | +150% Onion |
| Fat | 0.1g | 0.1g | 0% 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. Radish delivers 19 calories with 0.8g protein, 4g carbs, and 0.1g fat. The most meaningful difference: they're within 25 calories per serving, so calorie load is essentially equivalent. Both deliver similar protein density.
When to Pick Each
For Cutting / Weight Loss
When cutting on a tight calorie budget, Radish gives you 25 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), Radish delivers more grams of protein per calorie consumed.
For Bulking / Muscle Gain
For muscle gain, you want calories AND protein. Onion brings 44 calories — useful when you're chasing a surplus and struggling to eat enough. Onion delivers 1.2g 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
Radish fits cleanly into keto with only 4g carbs. Onion at 10g carbs uses significantly more of your daily 20g carb budget.
Frequently Asked
Which has more protein, Onion or Radish?
Onion has more protein: 1.2g vs 0.8g per serving. That's a difference of 0.3999999999999999g.
Which has fewer calories, Onion or Radish?
Radish has 19 calories per serving vs 44 calories in Onion — a difference of 25 calories.
Is Onion or Radish better for keto?
Radish is the better keto choice at 4g carbs per serving vs 10g carbs in Onion.
Is Onion or Radish better for weight loss?
For weight loss, Radish gives you more calorie flexibility (25 cal less per serving). For preserving muscle during a deficit, Radish delivers more protein per calorie. Most people on cuts benefit from Radish.
Which Is Better for Your Goal?
🔥 Weight Loss
Radish
Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.
💪 Muscle Gain
Onion
Higher absolute protein per serving better supports muscle protein synthesis.
🥑 Low-Carb / Keto
Radish
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
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