Nutritional Composition of Raw Onions. h) 10% or more of the daily value for vitamin C, vitamin B-6 and manganese. i) They also contain small amounts of calcium, iron, folate, magnesium, phosphorus and potassium and the antioxidants quercetin and sulfur.
No, onion alone won’t keep you in fine shape, but it will help. In addition to limiting your intake of fats and sugars, eating onions can get your blood sugar-and your weight-on the right track. So here is a simple, powerful health-enhancing recommendation: Eat an onion every day.