With the winter months upon usย manyย struggleย with colds and the flu. On average adults getย twoย orย threeย colds a year with some lasting from several days to weeks.ย
Registered Nutritionist and Health Writer Daisyย Ilchovskaย discusses how diet,ย supplements and lifestyle changesย may help boost your health during flu season.ย
Prevention, managing symptoms, and boosting the immune systemย eachย play an important role in the management of such infections.ย

Lifestyle
Washing your hands
This is a rather obvious one and we have been doing a lot of it throughout the Covid-19 pandemic, but washing hands with soap, for at least 20 seconds is still one of the best waysย to prevent respiratory infections such as influenza.
Covering your mouth and nose
This is another rather obviousย one butย coveringย your mouth and nose with a tissue when coughing/ย sneezingย may help with infection spread. If your hands are not free or youย donโtย have a tissueย you canย cough or sneeze into your sleeve.
Sleep
Sleep has an important physiological function,ย which links to immunity, which in turn helps fight off viruses and infections. Aiming for at least 8 hours sleep (ideally between 10:00 pm โ 7:00 am) at night may help your immune function. Eating an earlier dinner, avoidingย alcoholย and also avoiding blue light exposure from screens may help you get a more restful sleep.ย
Exercise
Physical activityย such as yoga, walking, stretching at least 2/3 times per weekย helps boostย theย functionย of yourย immune systemย by raising the levels of white blood cells, which fight infection. In addition, exercise can also help boost mood,ย detoxifyย and build muscle.
If you are looking for creative ways to keep active this winter, you may want to read our list of 50+ Practical Activities for the Winter.
Managing Symptoms
Self-care
It is important when you are dealing with any kind of infection toย giveย your bodyย time to recover and get enough rest. It is also important to keep hydrated with hot drinks such as herbal teas and soups/broths.ย
Practising self-care can be difficult if you are a carer, but it makes it even more important. Read our guide to care for the carer.

Sore throat
Saltwater gargles can help loosen mucus and fend off infections. Lozenges with Echinacea and Manuka honey may also be really soothing too.ย
Congestion
Steam inhalers, vaporisers or spending more time in a steamy room such as the shower may be able to help relieve congestion.ย
When older people are unwell, there is an increased chance that they will experience delirium. Delirium is an acute confusional state caused by underlying illness. Find out more from our Guide to Delirium.
Diet
In addition to keeping hydrated and consuming warm soups and broths it isย really importantย to consume antioxidant rich foods such as fruits and vegetables.ย These are usually rich in Vitamin C, which has immune boosting properties.ย Sugary snacks such as biscuits and muffins and too many refined carbohydrates such as breads, pastas, pastries etc. haveย actually beenย found to supress the immune system for overย fiveย hours, which is not what you need when you are fighting a cold or the flu.ย
As well as keeping healthy, there are other changes you can make in Winter to make sure that you are as prepared as you can be. Have a read of our Top 6 Tips to Prepare for Winter.
Supplements
Vitamin C
Vitamin C may help to prevent infections caused by bacteria and virusesย and alsoย shorten the duration of colds. This vitamin is not very well absorbed though, the best absorbed form is Liposomal Vitamin C, butย donโtย forget that plenty of fruits and vegetables such as peppers, kiwi, oranges etc. also contain it, so make sure you eat plenty of these.ย

Zinc
Zinc is an important mineral that boostsย the immune system and it has been found to be especially effective if taken within 24 hours of the onset of the cold.ย
Vitamin D
Vitamin D, also called the โsunshine vitaminโ as we produce it from bareย skinย exposure to the sun is especially importantย for the immune system, particularly in the winter months. The most bio available formulation (the form our bodies can use) is D3 and is best taken with another Vitamin called K2.ย Some people taking blood thinning medication such as Warfarinย have toย be careful when taking K2 though as it also has bloodย thiningย effects.
Please note that all advice on herbs and supplements is for general knowledge only and any of these may have interactions with over the counter or prescription medications, so best to work with a specialist such as a Registered Nutritional Therapist.ย
Garlic
Garlic also known as โnatureโs antibioticโ has also been found to be effective in upper respiratory tract infections. You can cook with it, add toย brothsย and also buy it in a supplement form.ย
Elderberry
The berries and flowers of elderberry plant are full of antioxidants and vitamins that may boost the immune system against the flu.ย You can take it as a supplement, lozenges,ย teaย and there is also a particularly effective liquid extract calledย Sambucolย whichย also contains elderberry.ย
Echinacea
Echinacea is aย pretty floweringย plant from the daisy family and has been found to be particularly effective against the common cold. You can take it as tablets,ย tincturesย or tea, but people with some autoimmune conditions such as Rheumatoid Arthritis or Multiple Sclerosis have to be careful as it may over-stimulate the immune system and cause a flare up in their symptomsย if taken longer term.ย
To find out more about how to optimise your health or for more information regarding Nutritional Therapy and health you can visit Daisyย Ilchovskaโsย website: Optimal Health Nutrition.