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Per 100g
Nutrition data source: USDA FoodData Central
Common measurement equivalents in grams
Whole red onions last 2-3 months in a cool, dry place. Once cut, they should be refrigerated and used within 7-10 days.
Yes, you can freeze chopped red onions. They will lose their crunch, so they are best used in cooked dishes like soups or stews rather than raw.
Look for onions that are firm, heavy for their size, and have dry, papery skins. Avoid those with soft spots, moisture, or visible sprouts.
Shallots are the best substitute for raw applications. Yellow onions or white onions can be used for cooking, though they have a different flavor profile.
When cut, onions release a gas called syn-propanethial-S-oxide, which reacts with the moisture in your eyes to form a mild sulfuric acid.
Red onions generally contain higher levels of antioxidants, specifically anthocyanins and quercetin, compared to white or yellow onions.
Rub your hands with lemon juice, vinegar, or against a stainless steel object under cold running water.
Yes, red onions are the most common variety eaten raw due to their mild flavor and crisp texture, making them perfect for salads and sandwiches.
Yes, onions are bulbs that grow underground and are classified as root vegetables in most culinary and dietary contexts.
medium red 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.
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