The onion has been grown and selectively bred in cultivation for at least 7,000 years. It is a biennial plant but is usually grown as an annual. Modern varieties typically grow to a height of 15 to 45 cm (6 to 18 in). The leaves are yellowish- to bluish green and grow alternately in a flattened, fan-shaped swathe.
Onions are nutrient-packed vegetables that contain powerful compounds that may help decrease your risk of heart disease and certain cancers. They have antibacterial properties and promote digestive health, which may improve immune function.
| calories : | 64 |
| carbohydrate : | 14.9 grams |
| fat : | 0.16 g |
| cholesterol : | 0 g |
| fiber : | 2.72 g |
| sugar : | 6.78 g |
| protein : | 1.76 g |
