Onions square measure nutrient-dense, which means they are low in calories however high in vitamins and minerals. One medium onion has simply forty-four calories however delivers a substantial dose of vitamins, minerals, and fiber This vegetable is especially high in antioxidant, a nutrient concerned in control immune health, scleroprotein production, tissue repair, and iron absorption. Vitamin C additionally acts as a robust inhibitor in your body, protective your cells against injury caused by unstable molecules known as free radicals Onions are wealthy in B vitamins, as well as vitamin B and vitamin B complex that play key roles in metabolism, red somatic cell production, and nerve perform Lastly, they are an honest supply of atomic number 19, a mineral within which many folks square measure lacking.