Probiotics are known to protect our bodies against infections. Yoghurt is a good source of this microorganism called Lactobacillus acidophilus or lactic acid bacteria in layman’s terms. It lives in our gut and it converts the sugar that enters our body into lactic acid and hydrogen peroxide, substances that prevent harmful bacteria from growing in the intestines.
Garlic is one of the most common herbs in cooking. According to research, garlic contains the compound allicin which has been found to stimulate the immune system. Other studies also show that garlic can lower blood pressure and protect the body from catching colds easily.
A lot of people shun egg yolks because they are high in cholesterol. On one hand, they are also rich in protein, zinc, and selenium, substances that help boost the immune system. If you have a high cholesterol problem, including three to four eggs a week in your diet is fine, or you can ask your dietician about it.
4. Sweet potatoes
Sweet potatoes are a good source of carotenoids, which are also found in carrots and kale. Carotenoids help the body fight free radicals. When digested, carotenoids are converted to Vitamin A which, in turn, helps boost the immune system, lower blood pressure, and decreases cancer risk.
Scientists have discovered that blueberries contain a compound called stilbenoid, which synergizes with Vitamin D to boost the cathelicidin antimicrobial peptide (CAMP) gene, which has something to do with how the immune system functions.
Spinach is packed with vitamins and minerals that help boost the immune system’s ability to fight off bacteria and viruses. These include Vitamin C, beta carotene, Vitamin E, and folate. Like broccoli, spinach is better when not overcooked.
7. Red and Green Peppers
These types of peppers are a good source of Vitamin C, which acts as an antioxidant, a substance that helps fight free radicals, unstable molecules that wreaks havoc in our bodies. Free radicals damage the DNA, mitochondria, and our immune system. Studies have shown that Vitamin C helps boost the immune system of people undergoing stress.