Onion
Onion
- Onions are a low-calorie food that's a good source of vitamin C, B vitamins, potassium, manganese, phosphorus, and fiber.
- Onions contain sulfur compounds that may help lower cholesterol levels and blood pressure. They also contain quercetin, an antioxidant that may help protect against heart disease.
- Onions have a low glycemic index, which means they're unlikely to cause spikes in blood sugar levels. They also contain chromium, a mineral that helps regulate insulin.
