Onion
* Calorie value is measured per serving weight shown
Nutrition (per 100g)
Common Serving Sizes
How long to burn 39 kcal
Approximate exercise time to burn the 39 kcal in each 100g:
About Onion
A common pantry vegetable; good for calorie comparison.
Health Benefits of Onion
Quercetin and sulphur compounds
Onions are rich in quercetin (a natural flavonoid antioxidant) and allyl-sulphide compounds - the source of their pungent bite. Red onions hold more quercetin than yellow or white, giving stronger antioxidant activity.
A natural flavouring
Onion is an all-purpose flavouring vegetable; its caramelised sweetness and browned aroma add depth to dishes. Using it as a stir-fry base can cut salt and sugar - a helper in lower-salt cooking.
Which colour for what
Red onions are pungent - good for cold dishes and quick fry, colourful; yellow onions are balanced-sweet, for long stewing and onion soup; white onions are watery and crisp, good raw and in sandwiches. Chill a cut onion 30 min to reduce the tear-inducing gas.