1 serving (100 grams) contains 40 calories, 1.1 grams of protein, 0.1 grams of fat, and 9.3 grams of carbohydrates.
Calories |
80 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 0.2 g | 0% | |
| Saturated Fat | 0.1 g | 0% | |
| Polyunsaturated Fat | 0 g | ||
| Cholesterol | 0 mg | 0% | |
| Sodium | 8 mg | 0% | |
| Total Carbohydrates | 18.7 g | 6% | |
| Dietary Fiber | 3.4 g | 12% | |
| Sugars | 8.5 g | ||
| protein | 2.2 g | 4% | |
| Vitamin D | 0 mcg | 0% | |
| Calcium | 46 mg | 3% | |
| Iron | 0.4 mg | 2% | |
| Potassium | 292 mg | 6% | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Oignons, or onions, are bulb-shaped vegetables that originated in Central Asia and have been cultivated for thousands of years. They are versatile and integral to many global cuisines, including French, Indian, and Mediterranean. Nutritionally, onions are low in calories (40 calories per 100 g) and contain small amounts of protein (1.1 g) and fat (0.1 g), while being a source of carbohydrates (9.34 g) and dietary fiber (1.7 g). They are rich in vitamin C (7.4 mg per 100 g), which supports immune function, and contain trace amounts of calcium (23 mg) and iron (0.21 mg). Onions are also known for their antioxidants and sulfur compounds, contributing to their characteristic flavor and potential health benefits.
Store onions whole in a cool, dry, and ventilated space. Once cut, refrigerate them in an airtight container for up to 7 days.
Onions provide 40 calories per 100 grams, 1.1 grams of protein, 9.34 grams of carbs, and 0.1 grams of fat. They also contain 1.7 grams of fiber, 4.24 grams of natural sugars, and are very low in sodium (4 mg), making them a nutrient-dense food.
While onions contain 9.34 grams of carbs per 100 grams, they also include 1.7 grams of fiber, resulting in a net carb count of 7.64 grams. Consuming onions in moderation can fit within a keto or low-carb diet due to their flavor enhancement and nutrient profile.
Onions are rich in antioxidants, particularly quercetin, which supports heart health and reduces inflammation. They also contain fiber for digestive health and compounds with antibacterial properties, contributing to overall well-being when included in a balanced diet.
A typical serving size of onion is about 50-100 grams, which is roughly half a medium onion. This portion provides around 20-40 calories and is a great way to add flavor while benefiting from its nutrients without exceeding calorie targets.
Onions have a mild but versatile flavor compared to the stronger taste of garlic or the sweeter and milder profile of shallots. Nutritionally, onions are lower in calories and fat than shallots but higher in carbs. Garlic, while similar in health benefits, is more nutrient-concentrated in smaller quantities.
Our nutrition data comes from trusted, authoritative sources to ensure accuracy and reliability. Below are specific scientific references and authoritative sources for this food item.
Additional Authoritative Sources:
Daily value percentages based on FDA guidelines. Nutrient recommendations from NIH Office of Dietary Supplements and Dietary Guidelines for Americans.
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