Sweet potato
Sweet potatoes are not only good for health but also have good effects on the skin and enhance immunity. The skin occupies a large area of the human body, which is the first defensive gland against external pathogens. Healthy skin can reduce the risk of bacteria and viruses entering the body.
Sweet potatoes are rich in vitamin A, helping to maintain skin health and enhance the ability to combat external pathogens.
Tea
Drinking black tea every day may increase the level of interferon (protein group with antiviral activity in the blood). L-Theanine amino acids in tea enhance immunity. This amino acid is found in both black and green tea.
Beef
Zinc is an important mineral that promotes immunity. It can promote the growth of white blood cells.
Oatmeal
Β-glucan rich oats, a diet fiber with antibacterial and antioxidant properties. It enhances immunity, accelerates the wound recovery process and helps antibodies work better.
Yogurt
The probiotics in yogurt can clean the intestine and reduce the ability to cause disease. A healthy intestine has good resistance.
Note, many yogurt products will add more sugar. Therefore, we should choose the type of yogurt without sugar (or less sugar) and contain few additives to avoid causing additional burden on the body.