Onions are low in calories but high in vitamins, fibre and minerals. Onions are high in vitamin C, which may help regulate your immune health.
Onions contain antioxidants that may reduce your risk of heart disease by fighting inflammation and lowering triglyceride and cholesterol levels.
Onions are an excellent source of antioxidants and contain at least 17 types of flavonoids.
Raw onions may lower your risk of developing certain types of cancer, including stomach and colorectal cancers.
Eating onions may help regulate blood sugar levels, which is significant for people with diabetes or prediabetes.
Onions may help fight potentially dangerous bacteria such as E. coli, Pseudomonas aeruginosa, S. aureus and Bacillus cereus.