The onion (Allium cepa L., from Latin cepa), also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus Allium. The shallot is a botanical …

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May 20, 2025 · Onions are packed with nutrients and plant compounds with powerful health effects. Learn about the health benefits of onions and ways to eat them.

Jan 8, 2026 · The onion is likely native to southwestern Asia but is now grown throughout the world, chiefly in the temperate zones. Onions are low in nutrients but are valued for their flavour and are …

Jan 18, 2024 · All types of onions are good for you, but this dark reddish-purple variety, sometimes called purple onion, has especially high levels of quercetin and other helpful plant compounds known …

Jun 9, 2025 · Discover 7 onion varieties and learn ideal ways to use each in cooking for enhanced flavor and enjoyment.

The amazing onion provides layers of flavor, color, and texture to a wide variety of dishes and cuisines. But, their appeal goes beyond flavor when you consider their role in history and our health.

Dec 5, 2025 · Exploring the chemical composition, the antioxidant, and the antiangiogenic potential of ancient onion (Allium cepa L.) varieties through molecular networks and chemometric tools.

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May 30, 2023 · What nutrition is in an onion? A medium 5.3-ounce onion has approximately: 45 calories. 11 grams of carbohydrates. 0 grams of cholesterol. 0 grams of fat. 3 grams of fiber. 1 gram of protein.