Large Onion
Also known as:
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Also known as:
Per 100g
Nutrition data source: USDA FoodData Central
Common measurement equivalents in grams
Yes, large onions are highly nutritious. They are rich in antioxidants and anti-inflammatory compounds that protect cells, and they provide essential Vitamin C and dietary fiber while remaining very low in fat and calories.
Per 100g, a large onion contains approximately 40 calories and 9.3g of carbohydrates. While they contain natural sugars, they also provide 1.1g of protein and are virtually fat-free, making them a nutrient-dense addition to meals.
Onions are excellent for weight loss because they are low in energy density, with only 40 calories per 100g. Their high fiber content promotes satiety, and their intense flavor allows you to season food without adding high-calorie fats or sauces.
Onions can be included in a keto diet but should be consumed in moderation. Since they contain about 9.3g of carbs per 100g, eating a whole large onion could impact your daily carb limit, so it is best used as a flavor enhancer rather than a main bulk ingredient.
Yes, onions are a natural vegetable and are inherently vegan and gluten-free. They are a safe staple for almost all dietary restrictions and are used globally as a base for plant-based cooking.
Large onions are versatile and can be sautéed, roasted, grilled, or caramelized. Sautéing them over medium heat with a little oil brings out their natural sweetness, making them an ideal base for soups, stews, and stir-fries.
Yes, raw onions are safe to eat and are commonly used in salads, salsas, and sandwiches. Eating them raw preserves the highest levels of Vitamin C and organic sulfur compounds, though the taste is significantly sharper than when cooked.
Large Onion is a versatile ingredient found in cuisines around the world. With 40 calories per 100g and 1.1 grams of protein, it's a nutritious addition to many dishes.
Explore more ingredients in the vegetable category with complete nutrition information.
View all vegetable →Discover 6 recipes featuring large onion with step-by-step instructions.
Browse recipes →Whole onions should be stored in a cool, dry, and well-ventilated area away from direct sunlight. Once an onion is cut, it must be stored in an airtight container in the refrigerator and used within 7 to 10 days.
A spoiled onion will typically feel soft or mushy and may have visible mold or dark spots. If the onion has a pungent, foul odor or the skin feels slimy, it has likely gone bad and should be discarded.
Cutting an onion breaks cells that release a gas which irritates the eyes. To minimize tearing, try chilling the onion in the fridge for 30 minutes before slicing, use a very sharp knife to minimize cell damage, or cut the onion near an open window or kitchen vent.