Nutrient Value & Benefits Contains Folic acid, Vitamin C and Amino acid .Vitamin C acts as a powerful antioxidant and also helps formation of collagen that is responsible for skin and hair health. Onion is a staple in India and are commonly chopped and used as an ingredient in various hearty warm dishes. They are versatile and can be baked, boiled, braised, grilled, fried, roasted, sautéed, or eaten raw in salads.