Six immunity-enhancing foods prevent flu in winter
The flu breaks out easily in winter, and everyone is possible to catch a cold. It decreases our immunity against the diseases. It’ s likely to cause a series of symptoms when it gets serious. However, we can nip it in the bud from keeping full body warm to changing eating and living habits,
1. Protein-rich foods. The lymphocytes in immune cells decrease greatly when our body lack protein, thus resulting in a decline in immunity. Lean meat is a main source of high quality protein. For those vegetarians or the aged, tofu, legumes, nuts and eggs are also great choices.
2. Iron-rich foods. Much of the iron in your body is found in your red blood cells, where it helps to carry oxygen to every cell. The scientists found in a study that old people with normal iron absorption have better immunity than the iron-deficient people. Due to the shortage of iron, our immunity fails to function effectively with the decrease of T cells — a key player in immune function. We can get enough iron from animal organs, meats, pork blood, duck blood, eggs, dark leafy veggies and so on.
3. Zinc-rich foods. Zinc is found in every cell in your body. This important mineral can activate more than 200 kinds of hormones and enzymes that can help the immune system to fight against the outside intrusion. We can get it from zinc-rich foods like oysters, carbs, legumes, red meats, dried fish, shellfish, pork liver, and wheat germs.
4. Selenium-rich foods. Selenium helps build up white blood cells—particularly those responsible for killing bacteria and viruses, even the flu. Just one serving of tuna, halibut, turkey or sardines gives you more than 60 percent of your RDA and provides you with mood-boosting omega-3 fatty acids.
5. Fermented foods. What do yogurt, kimchi (Korean cabbage), kefir (a fermented milk drink), miso and tempeh (made from fermented soybeans) have in common? They all contain beneficial bacteria, aka probiotics, which can help keep your immune system strong. Not into yogurt? Say cheese: Many aged raw-milk cheeses (such as Edam, Gouda or feta) are good sources of probiotics.
6. Vitamin A. Vitamin A is the VIP here, keeping mucous membranes moist and healthy so germs can’t get past them. You can get it from kale, spinach, yams, pumpkin, and carrots.