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Onions (cooked, boiled, drained, with salt) — Nutrition Facts
USDA FoodData Central · Low protein density3.2 g protein per 100 kcal
Protein 12% · 1.4 g
Carbs 84% · 9.6 g
Fat 4% · 0.2 g
Diet compliance
| Diet | Why |
|---|
| ✗ Keto | 8.2 g net carbs / 100 g — keto-friendly means <6 g |
| ✗ Carnivore | not animal flesh |
| ✓ Vegan | no animal products |
| ✓ Vegetarian | no meat or fish (dairy/eggs OK) |
| ✓ Whole30 | no grains, dairy, legumes, or added sugar |
Nutrition label — per 100 g
Nutrition Facts
Onions (cooked, boiled, drained, with salt) · per 100 g
Calories42
Total Fat 0.2 g0% DV
Saturated Fat 0 g0% DV
Cholesterol 0 mg0% DV
Sodium 239 mg10% DV
Total Carbs 9.6 g3% DV
Fiber 1.4 g5% DV
Sugars 4.7 g
Protein 1.4 g3% DV
Vitamin D 0 µg · Calcium 22 mg · Iron 0.2 mg · Potassium 166 mg
Based on FDA Daily Values · USDA FoodData Central
Calories & protein per common portion
| Portion | Weight | Calories |
| 100 grams | 100 g | 42 |
| 1 cup | 210 g | 88.2 |
| 1 tbsp chopped | 15 g | 6.3 |
| 1 large | 128 g | 53.8 |
| 1 slice large (1/4" thick) | 32 g | 13.4 |
| 1 medium | 94 g | 39.5 |
| 1 slice medium (1/8" thick) | 12 g | 5 |
| 1 small | 60 g | 25.2 |
| 1 slice thin | 8 g | 3.4 |
Protein per calorie
Onions (cooked, boiled, drained, with salt) delivers 3.2 g of protein per 100 calories — see where it ranks →
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FAQ
How many calories are in Onions (cooked, boiled, drained, with salt)?
Onions (cooked, boiled, drained, with salt) has 42 calories per 100 grams, which is about 88.2 calories per 1 cup.
How much protein is in Onions (cooked, boiled, drained, with salt)?
Onions (cooked, boiled, drained, with salt) has 1.4 g of protein per 100 grams — 3.2 g of protein per 100 calories.
Is Onions (cooked, boiled, drained, with salt) keto-friendly?
Onions (cooked, boiled, drained, with salt) has 8.2 g net carbs per 100 g, so it is not keto-friendly under the 6 g net-carbs-per-100 g rule of thumb.
Is Onions (cooked, boiled, drained, with salt) vegan?
Onions (cooked, boiled, drained, with salt) is vegan — it contains no animal-derived ingredients.
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