Red onions are cultivars of the onion, and have purplish-red skin and white flesh tinged with red. They are most commonly used in the culinary arts, but the skin of the red onion has also been used as a dye. These onions tend to be medium to large in size and have a sharp flavor and eye-watering qualities. learn more
- Onions are an excellent source of antioxidants. In fact, they contain over 25 different varieties of flavonoid antioxidants.
- Red onions, in particular, contain anthocyanins — special plant pigments in the flavonoid family that give red onions their deep color.
nutrition facts
- 64 calories
- 14.9 grams (g) of carbohydrate
- 0.16 g of fat
- 0 g of cholesterol
- 2.72 g of fiber
- 6.78 g of sugar
- 1.76 g of protein
- Vitamin C (RDA) 13.11% for males and 15.73% for females
- Vitamin B-6 (RDA) 11.29–14.77%, depending on age
- Manganese (AI) 8.96% for males and 11.44% for females
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