We’re right in the start of winter and you would have noticed a few co-workers already succumbing to winter bugs. You would also have seen a sudden increase in “immune booster” products being advertised to us, but do they even work?
I thought I’d share a few scientifically proven ways you can help keep your immune system healthy and balanced this winter while addressing a few myths at the same time.
Boosting your immune system
We’ve all heard about boosting our immune system, but is that even possible? Our immune system is quite complex consisting of hundreds of different cells doing a variety of different jobs. It consists out of the innate response (which identifies unfriendly bugs often leading us to have a fever or feeling under the weather) and the acquired response (which swoops in and battles against the unfriendly bugs). So the question is, what exactly are these products claiming to boost? Is it antibodies, or white cells or nothing really? Scientifically speaking, you can’t really “boost” your immune system. You can however try to keep things in balance and make some lifestyle and dietary changes that will help you have a healthy immune system.
Supplements only work when you have a poor diet and find yourself deficient. Studies have shown that taking supplements if you’re eating a healthy, balanced diet won’t improve your immune system. Taking high dosages of vitamins can actually have an adverse effect and can lead to toxicity, especially in vitamin D and A.
What about herbal supplements like Echinacea? Unfortunately there just haven’t been enough studies to support the claims that herbs have a boosting effect on the immune system. Some of the studies have also been criticised for being too small or for being badly designed, which means they don’t supply us with enough supporting evidence.
Probiotics fall in the same category as herbal supplements. Scientists have started to look at the role our gut bacteria plays on our overall health, but it’s still early days and currently we can’t conclusively state that taking probiotics as a supplement will help boost the immune system. At the moment eating a healthy, balanced diet rich in fibre is a scientifically proven way to keep the gut healthy and as a result, help keep your immune system healthy. As more research is done in this area over the next few years we might be able to understand better what effect taking a probiotic supplement might have on our immune system.
Staying active especially as the days become darker and colder can be a challenge. But it’s one of the ways you can help your immune system. Exercise helps to keep blood pressure and body weight under control. Working out also helps protect the body against some diseases. So instead of hitting the snooze button and sleeping in, get up and get moving.
Sleep in general won’t help improve your immune system, but getting enough restorative sleep will help keep your immune system healthy. Most adults these days get less than 7 hours sleep a night, which doesn’t leave much time for restorative sleep. A few tips include making sure you switch all blue light appliances off at least 30 minutes before bed (this includes your mobile phone), winding down in bed with a good book, meditation or a relaxing bath and make sure you don’t drink too much alcohol as it can impact your sleep quality.
Raw food diets, juice cleanses and detox diets are fad diets. Despite what they claim, they won’t help keep your immune system healthy. You need to make sure you’re giving your body all the nutrients it needs and the best way to do it is by eating a healthy, balanced diet. Focus on incorporating a wide range of fruit, vegetables and fibre rich grains and pulses. This will make sure you get all the micronutrients your body needs to remain healthy. Make sure you limit your intake of processed foods and red meat.
If you do have a compromised immune system, make sure you chat to your GP about steps to take to help protect you against bugs this winter. There’s so much misinformation dressed up as science floating around on the internet and it can be tricky trying to sort fact from fiction. Often times, having a healthy body is usually the answer and it doesn’t require fancy, expensive lattes (although they are pretty), gruelling diets or pricy pills. While it’s not very sexy, a balanced wholefood mainly plant-based diet combined with exercise is one of the best ways to take care of your body and make sure your immune system remains healthy.