15. Watermelon
Watermelon is a delicious summer treat that is not only tasty, but also high in Vitamin C. Not only can it be eaten fresh, but it can also be made into smoothies, salads, and other treats. Watermelon is a great source of Vitamin C, and can help with boosting the immune system, as well as providing antioxidants to keep your body healthy. So enjoy a juicy slice of watermelon this summer to get your daily dose of Vitamin C and keep your body healthy!