Regularly eating a variety of nutritious foods rich in vitamins and minerals, such as citrus fruits, spinach, red peppers, and ginger, may help boost your immune system. While no food can prevent ...

11. Celery Water content: 95% Celery is a very healthy and hydrating food to include in your diet. It’s made mostly of water, providing close to a half cup (118 ml) of it in a 1-cup serving.