Onions are from the same family as garlic, leeks and shallots and provide a range of nutritional benefits. Onions are low in calories and contain vitamin B, vitamin C and small amounts of minerals.
In addition, onions contain the antioxidant quercetin, flavonoids and several other micronutrients which are proven to reduce blood clotting and raise healthy cholesterol (high-density-lipoproteins).
Calories in Onions:
4 oz/100g = 36 calories