15 Foods that Boost your Immune System


Ripe watermelon is full of glutathione, another strong antioxidant. Glutathione is known to improve the immune system’s infection fighting abilities and is located in the fleshy, red pulp found close to the watermelon’s rind.


Another great source of glutathione is cabbage, which is often associated with various health benefits. Cabbage is easy to find in any grocery store, as well as being highly affordable, especially when it’s in season throughout the winter.

Cabbages are also easy to add to casseroles, soups and even smoothies to boost the nutritional value of any meal.


Almonds contain riboflavin and niacin (both of which are B vitamins) and plenty of vitamin E, all of which can help develop and maintain a functional immune system. Almonds have also been suggested to combat headaches and stress, plus they’re an ideal source of protein and fiber to snack on throughout the day.


Grapefruit is rich in Vitamin C, which is required for a functional immune system. It also contains a high level of flavonoids. Flavonoids are natural chemical compounds known for reducing damage to cell DNA and membranes.

People taking certain medications are not recommended to eat grapefruit, or some may simply dislike the taste. Alternatives include oranges or tangerines.

Wheat Germ

Wheat germ is a component of wheat seed that helps to feed wheat plants. As a result, it’s full of nutrients, including zinc, antioxidants, B vitamins and other minerals. It’s also a good source of protein, fiber and good fats.

To inject more wheat germ into your diet, try using it in place of flour, for example when baking cakes, cookies or other recipes.

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