Good nutrition is essential to a strong immune system, which may offer protection from seasonal illness and other health problems. No one food or supplement can prevent illness but you may help support your immune system by including these nutrients in your overall eating plan on a regular basis.
Protein plays a role in the body's immune system, especially for healing and recovery. Eat a variety of protein foods including seafood, lean meat, poultry, eggs, beans and peas, soy products, and unsalted nuts and seeds.
2. Vitamin A
Vitamin A helps regulate the immune system and protect against infections by keeping skin and tissues in the mouth, stomach, intestines, and respiratory system healthy. Get this vitamin from foods such as sweet potatoes, carrots, broccoli, spinach, red bell peppers, apricots, eggs, or foods labeled "vitamin A fortified," such as milk or some cereals.
3. Vitamin C
Vitamin C supports the immune system by stimulating the formation of antibodies. Include more sources of this healthy vitamin by choosing citrus fruits such as oranges, grapefruit, and tangerines, or red bell pepper, papaya, strawberries, tomato juice, or foods fortified with vitamin C, such as some cereals.
4. Vitamin E
Vitamin E works as an antioxidant and may support immune function. Include vitamin E in your diet with fortified cereals, sunflower seeds, almonds, vegetable oils (such as sunflower or safflower oil), hazelnuts, and peanut butter.
Zinc helps the immune system work properly and may help wounds heal. Zinc can be found in lean meat, poultry, seafood, milk, whole grain products, beans, seeds, and nuts.
Other nutrients, including vitamin B6, B12, copper, folate, selenium, and iron also may support immune response and play a role in a healthful eating style. Obtaining these nutrients from foods is preferred, so be sure to speak with your health care provider or a registered dietitian nutritionist before taking any supplements.