Your diet is the first defence against illness, according to Ed. One of his top tips is to "eat the rainbow". This means making sure you build your meals around brightly coloured vegetables such as carrots, peppers and sweet potatoes. Berries can be a great option too, as they have lots of antioxidants as well as vitamins A, C, and E that protect your immune cells.
It's also a good idea to avoid high sugar and ultra-processed foods. Ed said: "This becomes especially challenging during the colder months as the impending festive treats remain a temptation, so it is important to remain conscious of intake.
"Alcohol consumption is also key to watch out for during the holiday season, particularly sugary drinks like cider and liqueurs, as it actively suppresses your immune function at a time when you need it most."