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While lifestyle factors like exercise and sleep play a significant role, the food we consume can significantly enhance our immune defences.
Here’s a look at some foods that can help bolster your immune system.
1. Citrus Fruits
Citrus fruits, such as oranges, lemons, limes, and grapefruits, are well-known for their high vitamin C content. Vitamin C is vital for the production of white blood cells, which are key to fighting infections. Given that the body does not produce or store vitamin C, daily intake is crucial for maintaining an effective immune system.
2. Red Bell Peppers
While citrus fruits are high in vitamin C, red bell peppers contain twice as much of this essential vitamin. They are also a rich source of beta carotene, which the body converts into vitamin A. Vitamin A is important for maintaining the health of your skin and mucous membranes, which are the body’s first line of defence against pathogens.
3. Broccoli
Broccoli is packed with vitamins A, C, and E, as well as fibre and many other antioxidants. It is one of the healthiest vegetables you can put on your plate. To retain its nutrients, it is best cooked as little as possible – or better yet, not at all.
4. Garlic
Garlic has been used for centuries for its medicinal properties. It contains compounds such as allicin, which is known to boost the disease-fighting response of some types of white blood cells in the body when they encounter viruses.
5. Ginger
Ginger is another ingredient many turn to after falling ill. It may help decrease inflammation, which can help reduce a sore throat and inflammatory illnesses. Ginger is also packed with antioxidants and has anti-inflammatory properties.
6. Spinach
Spinach made our list not just because it’s rich in vitamin C but also because it’s packed with numerous antioxidants and beta carotene, which may increase the infection-fighting ability of our immune systems. Like broccoli, spinach is healthiest when it’s cooked as little as possible so that it retains its nutrients.
7. Yoghurt
Yoghurt that contains live and active cultures, like Greek yoghurt, can stimulate your immune system to help fight diseases. Look for yoghurts that have "live and active cultures" printed on the label, and try to get plain yoghurts rather than the kind that are pre-flavoured and loaded with sugar.
8. Almonds
When it comes to preventing and fighting off colds, vitamin E tends to take a backseat to vitamin C. However, this powerful antioxidant is key to a healthy immune system. Nuts, such as almonds, are packed with the vitamin and also have healthy fats, which help in the absorption of fat-soluble vitamins.
9. Turmeric
Turmeric is a bright yellow, bitter spice that has been used for years as an anti-inflammatory in treating both osteoarthritis and rheumatoid arthritis. High concentrations of curcumin, which gives turmeric its distinctive colour, can help decrease exercise-induced muscle damage. Curcumin has promising immune-boosting potential.
10. Green Tea
Green tea is packed with flavonoids, a type of antioxidant. In studies, the amino acid L-theanine found in green tea may aid in the production of germ-fighting compounds in your T-cells. Additionally, green tea is a good source of the amino acid that enhances immune function.
Incorporating these foods into your diet can help enhance your immune system, but it's important to remember that no single food or supplement is a magic bullet. A balanced diet, combined with other healthy lifestyle habits, is the best way to support overall health and a strong immune system. Stay well, eat healthily, and keep your defences strong!