boost your immune system in good time for flu season? How to increase your immunity level in

The innate immune system is activated as soon as a disease-causing micro-organism is detected. It can detect invaders such as viruses, bacteria, parasites and toxins and attempt to kill them off, before they can enter the body. Innate immunity is made up of things like skin, the gastrointestinal tract and the respiratory tract. Inside these parts are barriers like mucus, secretion and gastric acid, which try to stop harmful organisms from getting in.

Vitamin D is fat-soluble so it is stored in fat cells rather than circulating in the body, Mike says. The adaptive immune system is activated to enhance the innate system by producing specific pathogen-neutralising compounds known as immunoglobulins. “The idea of boosting your immunity sounds simple enough, but it’s not like giving yourself an injection or taking a shot,” he added. Notably, some vitamins and minerals take longer to generate their effect than others.

Brush your teeth regularly, twice daily and remember to floss. Oily fish, like pilchards, sardines, mackerel and some salmon are high in omega-3 fatty acids, which may also help enhance the function of the immune system. Mike added that most of us are deficient in vitamin D which is produced by the body when were exposed to sunshine.

Suitable for vegans. 10.15 (30 tablets) Sambucol ImmunoForte Gummies contain black elderberry flavonoids, plus vitamin C, zinc, selenium and beta glucans which all help the normal function of the immune system. 14.95 (30 sachets) Blackcurrants offer anti-viral and antimicrobial properties to help prevent infection. You should be eating at least five portions of fruit and veg a day, he added.

21.75 (30 capsules) Made with all-natural ingredients and boosted with 100% NRV vitamin D, C and B12, these new Perkier +Immune bars are tasty plant-based snacks to boost immune health. The 15.99 (15 bars) price tag for each per bar is higher than the price of regular cereal bars. Also available in black and orange flavoured versions. *Includes gluten-free version. **Made with whole-grain ingredients only. No artificial flavouring or colouring