Tomatoes are an excellent source of essential vitamins and minerals. They are particularly high in vitamin C, which boosts the immune system, and vitamin A, which promotes good vision and skin health. They also contain potassium and vitamin K, which are important for heart health and bone strength. Fresh tomatoes are packed with antioxidants, particularly lycopene, a powerful compound linked to reduced risk of heart disease and certain types of cancer. Lycopene also protects cells from damage caused by free radicals.