
Onion is a commonly used vegetable, rich in antioxidants, sulfur compounds, and vitamin C, known for supporting heart health, digestion, and immunity.
Sun, Aug 17, 2025Onion is one of the most widely used vegetables in cooking across the world. It is rich in antioxidants, vitamin C, and sulfur compounds that improve immunity, heart health, and digestion. Onions also have antibacterial properties and help regulate blood sugar levels.
Onion is a staple vegetable used in almost every cuisine worldwide.
| Nutrient | Amount |
|---|---|
| Calories | 40 kcal |
| Carbohydrates | 9 g |
| Protein | 1.1 g |
| Fiber | 1.7 g |
| Vitamin C | 7.4 mg (8% RDI) |
| Potassium | 146 mg |
| Folate (B9) | 19 µg |
| Calcium | 23 mg |
| Water Content | 89% |