Consume vitamins. To strengthen the immune system, you are going to need vitamins and minerals.
Their lack can be compensated with the help of multivitamin complexes, but generally, it’s better to get vitamins and minerals in a natural way. Vitamin A can be obtained from carrots, grapes, and greens. Vitamin C is in citrus fruits, rose hips, cranberries, lingonberries and cabbage, especially sauerkraut. Vitamin E can be found in sunflower, olive or corn oil. Grains, eggs, any greens, and nuts are rich in vitamin B. Minerals like iron, copper, magnesium, and zinc are contained in liver, kidney, heart, nuts, beans and chocolate.