Sweet potatoes provide vitamin A, which prevents the damage that can be caused by ultraviolet rays. Besides being good for the skin, they are low in calories and have a lot of fiber.
This fruit contains vitamin E, a fundamental antioxidant that also strengthens the defenses.
Dark chocolate, rich in cocoa, contains theobromine. This is a substance that protects white blood cells from molecules that are produced when food is processed or makes contact with contaminants. Since chocolate tends to have a lot of calories and saturated fat, it is best to pick dark chocolate with a high percentage of cocoa.
It has various antioxidants that function as anti-bacterial, anti-viral, and anti-fungal. Garlic prevents colds and is effective against fever, as well as lowering blood pressure.
Nuts in general, and almonds in particular, contain vitamin E. In addition, it contains the fats necessary for it to be optimally absorbed to maintain a healthy immune system.
Its antioxidant properties come from anthocyanin, which is also what gives it its dark color. Blueberries are remarkable protectors of the respiratory tract.
It has different minerals and vitamins, the most remarkable being A, C and E, and also antioxidants and fiber. To provide their maximum strength, broccoli should be cooked as little as possible.
They contain basic elements to increase the defenses and sugar molecules that favor its immune function.
Lemons, oranges or tangerines, and grapefruits, rich in vitamin C, stimulate the production of white blood cells. It is advisable to eat them every day. Among other things, they help prevent colds.
Crustaceans have a large amount of zinc, which is necessary for the cells that regulate the immune system.