Protein
Sadly, fat pork and mutton will not help boost the immunity. Instead, young beef and turkey are perfect for the immune system. Also are used polyunsaturated fatty acids, known as Omega-3, to improve the immunity. Omega-3 is found in oily fish of cold seas such as herring, tuna, halibut, salmon.
Dietitians recommend to consume oysters, a healthy and delicious product. Oysters are rich in zinc that helps to fight influenza and protects body from cold. Zinc has a positive effect on T-cells which play an important role in detecting foreign antigens and recovery of other cells of immune system. Even moderate zinc deficiency may have negative effects on immune system.
Vegetable oils
In period of boosting your immunity try to prepare food with oils made of pumpkin, walnut, grapes, cedar necessarily of primary extra virgin. They are rich in Omega-3 but are quite expensive. Alternatively, accept purchase of these oils as purchase of a needful medication. Generally speaking, it is so.
Honey
Honey is digested easily by the body and its consumption helps to increases the immunity. Honey contains vitamins of B group which helps it to improve stomach work, calm nerves and improve sleep. Besides this, honey is natural analgetic remedy, which helps it to relieve cough during cold. Eat honey with or without warm green tea.
If you are not allergic to honeycraft products, it would be good to consume pollen. Pollen helps to boost immune system, prevent colds and influenza, normalize blood pressure, increases hemoglobin, normalize bowel work, helps to restore body after diseases and stress.
Tea
Tea (especially green tea) is second popular drink after water in the world. It is rich in polyphenols and contains a number of healthy substances which protect body from influenza.
