Calories in Onion
Onions are a versatile root vegetable known for their pungent flavor and crisp texture. They are low in calories and fat, while providing a good source of dietary fiber, vitamin C, and various beneficial plant compounds. Onions are a staple in cuisines worldwide, used both raw and cooked.
Common Variations
| Variation | Serving | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 100 g | 100 g | 42 | 0.9g | 10.1g | 0.1g |
| 1 cup chopped (160g) | 1 cup chopped (160g) | 67 | 1.5g | 16.2g | 0.1g |
| 1 oz (28g) | 1 oz (28g) | 12 | 0.3g | 2.9g | 0g |
| 1 tbsp chopped (10g) | 1 tbsp chopped (10g) | 4 | 0.1g | 1g | 0g |
| 1 large (150g) | 1 large (150g) | 63 | 1.4g | 15.2g | 0.1g |
| 1 small (70g) | 1 small (70g) | 29 | 0.6g | 7.1g | 0.1g |
Health Benefits
Rich in antioxidants, particularly flavonoids, which help protect the body's cells from damage.
Contains sulfur compounds that may help lower blood pressure and cholesterol levels.
Provides prebiotics (like inulin and fructooligosaccharides) that support gut health by feeding beneficial bacteria.
Nutrition Tips
- Enjoy raw onions in salads or sandwiches for a crisp texture and pungent flavor, adding minimal calories.
- Sauté onions with a small amount of olive oil or broth to soften them and bring out their natural sweetness without excessive fat.
- Incorporate onions into stir-fries, soups, and stews to boost flavor and nutrient content.
- Be mindful of cooking methods; deep-fried onion rings significantly increase calorie and fat content compared to raw or sautéed onions.
- Use green onions (scallions) as a milder alternative or garnish, as they are very low in calories and add fresh flavor.
GAYA Tracking Tip
When logging onions, specify whether they are raw, cooked, or part of a dish. For cooked onions, try to estimate the amount of added oil or butter, as this significantly impacts calorie count. GAYA can often distinguish raw onion slices from cooked ones.
Frequently Asked Questions
Are onions good for weight loss?+
Yes, onions can be beneficial for weight loss. They are low in calories and high in fiber, which helps promote a feeling of fullness and can aid in digestion. Incorporating them into meals adds flavor without significantly increasing calorie intake.
What is the difference in nutrition between raw and cooked onions?+
Raw onions retain more of their heat-sensitive nutrients like Vitamin C. Cooking onions, especially sautéing with oil, can increase their calorie and fat content due to the added cooking medium, but it also brings out their natural sweetness and makes some nutrients more bioavailable.
Do onions cause gas or bloating?+
For some individuals, especially those with sensitive digestive systems or Irritable Bowel Syndrome (IBS), onions can cause gas and bloating. This is due to their content of fructans, a type of fermentable fiber. Cooking onions thoroughly can sometimes reduce these effects.
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