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.

Dec 5, 2025 · A large observational study in women over 50 years of age found that regular onion consumption is linked to increased bone density.

Apr 14, 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 fo

Feb 21, 2026 · 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

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 histo

May 11, 2025 · There’s more than one kind of onion in the world. Learn the differences between white and yellow onions, shallots, spring onions, scallions, and more.

Mar 30, 2026 · When given alongside the antidiabetic drug metformin, onion extract lowered fasting blood sugar levels by 35% to 50%, depending on the dose. 8 This is a promising f

Jan 4, 2025 · We did a deep dive into the humble allium and consulted with an onion expert to drill down on the 7 most common types of onions and how to use them.

The average, medium-sized onion has 45 calories, the bulk of which come from the sugars fructose and glucose, as well as one gram of protein and three grams of dietary fiber (FDA,

Feb 14, 2024 · They are probably the most common onion used in chili, and the most commonly used onion on burgers by America’s restaurants. Slice them up and roast them with an