Strawberries are being called a nutritional super food because they are an excellent source of antioxidants including vitamin C, and have high levels of potassium, magnesium, vitamin E, zinc, folate and fiber. Its vitamin C content is more than that of lemons. These help lowering blood pressure and blood cholesterol, prevent thrombosis, the narrowing of blood vessels and heart attack. zinc and vitamin C support the immune system by fighting against bacteria and viruses. The iron content of strawberries helps the oxigen transportaion of the blood, folic acid helps blood-forming.