Onions (Raw)vsTomatoes Red (Raw)
Onions (Raw) has 40 calories and 1.1g protein per 100g. Tomatoes Red (Raw) has 18 calories and 0.88g protein per 100g Onions (Raw) has more protein, Tomatoes Red (Raw) is lower in calories.
🎯When to Eat What
Goal-based picks for Onions (Raw) vs Tomatoes Red (Raw)
Go with Tomatoes Red (Raw) at just 18 kcal per 100g — 55% fewer calories.
Tomatoes Red (Raw) provides 237mg of potassium per 100g — important for muscle function and hydration.
Tomatoes Red (Raw) delivers 13.7mg of vitamin C per 100g — great for immune function and skin health.
🔥Calorie Breakdown
💪Macronutrient Comparison
🕸️Nutrient Profile
Values as % of Daily Value (capped at 150%)
📊Full Nutrition Comparison
| Nutrient | Onions | Tomatoes Red Ripe Year Round Average | Diff |
|---|---|---|---|
| 💪Macronutrients | |||
| Calories | 40kcal2% | 18kcal1% | +22kcal |
| Protein | 1.1g2% | 0.88g2% | +0.22g |
| Total Fat | 0.10g0% | 0.20g0% | <0.1g |
| Saturated Fat | <0.1g0% | <0.1g0% | +<0.1g |
| Trans Fat | 0g | 0g | — |
| Cholesterol | 0mg0% | 0mg0% | — |
| Carbohydrates | 9.3g3% | 3.9g1% | +5.4g |
| Dietary Fiber | 1.7g6% | 1.2g4% | +0.50g |
| Sugars | 4.2g | 2.6g | +1.6g |
| ✨Vitamins | |||
| Vitamin A | 0mcg0% | 42mcg5% | <0.1mcg |
| Vitamin C | 7.4mg8% | 14mg15% | <0.1mg |
| Vitamin D | 0mcg0% | 0mcg0% | — |
| Vitamin E | <0.1mg0% | 0.54mg4% | <0.1mg |
| Vitamin K | 0.40mcg0% | 7.9mcg7% | <0.1mcg |
| Vitamin B6 | 0.12mg7% | <0.1mg5% | +<0.1mg |
| Vitamin B12 | 0mcg0% | 0mcg0% | — |
| Folate | 19mcg5% | 15mcg4% | +4.0mcg |
| Thiamin (B1) | <0.1mg4% | <0.1mg3% | +<0.1mg |
| Riboflavin (B2) | <0.1mg2% | <0.1mg1% | +<0.1mg |
| Niacin (B3) | 0.12mg1% | 0.59mg4% | <0.1mg |
| 🔶Minerals | |||
| Sodium | 4.0mg0% | 5.0mg0% | <0.1mg |
| Calcium | 23mg2% | 10mg1% | +13mg |
| Iron | 0.21mg1% | 0.27mg2% | <0.1mg |
| Potassium | 146mg3% | 237mg5% | <0.1mg |
| Phosphorus | 29mg2% | 24mg2% | +5.0mg |
| Magnesium | 10mg2% | 11mg3% | <0.1mg |
| Zinc | 0.17mg2% | 0.17mg2% | — |
| Copper | <0.1mg4% | <0.1mg7% | <0.1mg |
| Manganese | 0.13mg6% | 0.11mg5% | +<0.1mg |
| Selenium | 0.50mcg1% | 0mcg0% | +0.50mcg |
🔬Nutritional Analysis
Calories: Tomatoes Red (Raw) is significantly lower in calories at just 18 kcal per 100g compared to 40 kcal for Onions (Raw) — that's 122% fewer calories, making Tomatoes Red (Raw) the better choice for calorie-conscious diets.
Protein: Both are similar in protein content, with Onions (Raw) providing 1.1g and Tomatoes Red (Raw) providing 0.88g per 100g.
Fat: Onions (Raw) is the leaner option with 0.1g of total fat per 100g compared to 0.2g.
Key Vitamins: The most notable vitamin differences are in Vitamin A (Tomatoes Red (Raw): 42mcg vs 0mcg), Vitamin E (Tomatoes Red (Raw): 0.54mg vs 0.02mg), Vitamin K (Tomatoes Red (Raw): 7.9mcg vs 0.4mcg).
Key Minerals: Notable mineral differences include Selenium (Onions (Raw): 0.5mcg vs 0mcg), Calcium (Onions (Raw): 23mg vs 10mg), Potassium (Tomatoes Red (Raw): 237mg vs 146mg).
Diet Suitability: Tomatoes Red (Raw) fits a low-carb or keto diet. Both fit a low-fat diet. Both fit a low-sodium diet.
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❓Frequently Asked Questions
- Which has more protein, Onions (Raw) or Tomatoes Red (Raw)?
- Onions (Raw) has more protein with 1.1g per 100g compared to 0.88g for Tomatoes Red (Raw).
- Which is lower in calories, Onions (Raw) or Tomatoes Red (Raw)?
- Tomatoes Red (Raw) is lower in calories with 18 kcal per 100g versus 40 kcal.
- Is Onions (Raw) or Tomatoes Red (Raw) healthier?
- It depends on your goals. Onions (Raw) has 40 calories and 1.1g protein per 100g, while Tomatoes Red (Raw) has 18 calories and 0.88g protein. Compare their full nutrition profiles to decide which fits your diet.
- Which has less fat, Onions (Raw) or Tomatoes Red (Raw)?
- Onions (Raw) is leaner with 0.1g of fat per 100g compared to 0.2g.
- Which has more fiber, Onions (Raw) or Tomatoes Red (Raw)?
- Onions (Raw) has more fiber with 1.7g per 100g compared to 1.2g.