Vitamins for immunity
Keep your body’s defences shipshape.
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Your immune system is a large network of cells and responses that helps to keep harmful substances and microbes at bay and fight them off. It comprises of:
When your body encounters a new danger, such as a virus, it launches what’s known as an immune response. This can often make you feel unwell and tired, as your energy is being redirected to fighting the threat. Once your body has encountered a particular type of threat, it ‘remembers’ by using types of white blood cells called memory cells. So that when your body is faced with the same threat again, it can quickly fight it off without you getting as unwell as you did the first time.
You can develop an ‘overactive’ immune system. It may be split into two categories: autoimmunity, and hypersensitivity. Autoimmunity is an umbrella term for a few different conditions where your immune system targets healthy cells rather than dangerous or faulty ones. As a result, your body attacks certain parts of itself, like your skin, joints or organs. Examples of autoimmune conditions include: type 1 diabetes, multiple sclerosis and celiac disease.
Hypersensitivity is when your body overreacts to a foreign substance, wrongly perceiving it to be a threat. Hypersensitivity typically includes allergies, such as hay fever or food allergies.
Many people's immune systems don’t function at their best for a number of reasons, but on some occasions one or more parts of someone’s immune system don’t function at all. These stronger cases of underactive immune systems can be called ‘immunodeficiency’.
In these cases, supplements or immune system boosters won’t help to improve your immune system’s function. Immune system vitamins should only be used to supplement a healthy lifestyle in order to keep your immune system functioning at its best levels.
Vitamins for immunity won’t counteract poor lifestyle choices or severe immune system disorders. In these cases, you’ll need to adjust your lifestyle or seek clinical help in order to manage it.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
There are a number of reasons why your immune system might not be at its best. On the milder end of the spectrum, your immune system could be weaker due to:
More severe immunodeficiencies can be caused by things like:
If you have a weak immune system, you’ll probably become ill more often, and when you do get ill the illness will often be more severe than it is in other people as well as harder to treat. You might also get recurring illnesses, or illnesses that people with stronger or healthier immune systems might not experience, such as pneumonia, skin infections or digestive issues.
Having an immune system that doesn’t function as it should puts you at an increased risk of developing a range of illnesses that can be detrimental to your health. As a result, you should make sure that you take measures to minimise your risk of catching infections or illnesses where possible if you have an immunodeficiency. This includes practising good hygiene and sanitation, as well as trying to avoid being near people who are sick.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
There are a number of things you can do to help support the function of your immune system.
Vaccinations are a good way to reduce your chances of getting really sick from specific illnesses. They involve giving you the antigens or weakened pathogens that cause certain illnesses, so that your body can recognise them and build immunity to them. But some vaccines can cause issues for some people who have more serious immunodeficiencies. As a result, you should always talk to your clinician before getting certain vaccines if you’re immunocompromised.
Aside from vaccines, your whole body - including your immune system - is most likely to function at its best when you take steps to live as healthy a lifestyle as possible. So, for example, your immune system will have the best possible chance of fighting off illnesses and infections if you make sure you:
So, in essence, you can’t really ‘boost’ your immune system (sorry). The best way to maintain a healthy immune system is to make healthy choices for you. It’s as simple as that. A holistic approach to your health, which includes taking supplements when you think they might be needed, will always be your best bet.
It’s always a good idea to have a diet consisting of a range of vitamins and minerals in order to keep your body as healthy as possible.
Vitamin C, which you can find a lot of in most citrus fruits as well as some fruits and vegetables like broccoli, bell peppers, strawberries and tomatoes, has been shown to help support your body’s immune system to function properly.
As well as foods high in vitamin C, it’s also a good idea to try to eat a lot of foods high in vitamin E. These include nuts, such as peanuts, hazelnuts and almonds, as well as vegetable oils and green vegetables like spinach and broccoli. Vitamin E has also been shown to support your body’s immune system, as well as being an antioxidant like vitamin C.
Some research has also shown that probiotics found in some yoghurts can help to boost your immune system.
The best diet will be one that consists of a varied balance of fruits, vegetables and proteins to make sure you get a range of nutrients and vitamins. And it’s also important to remember that you can’t rely on nutrients or diet alone in order to maintain a healthy immune system or fight off infections or diseases. Your immune system’s health is dependent on a range of factors like sleep, stress and exercise, as well as immunisations and hygiene.
Sometimes getting all the vitamins and minerals you need to support your immune system from diet alone can be hard. Or, in the winter months for instance, you might not get enough vitamin D from sunlight. This is when immune boosting supplements can come in. Vitamins for immunity can include: echinacea tablets, vitamin C or D tablets and zinc supplements.
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Herbal treatment used to ease common cold and flu symptoms.
Registered with GMC (No. 4624794)
Meet DanielRegistered with GPhC (No. 2202465)
Meet SanjedaRegistered with GPhC (No. 2070724)
Meet CraigAlways read the leaflet that comes with your medication and tell us about any side effects you get.
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Disclaimer: The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. If you have any questions or concerns about your health, please talk to a doctor.
Office of Dietary Supplements - Vitamin C. Nih.gov.
Office of Dietary Supplements - Vitamin E. Nih.gov.
Medicinal properties of Echinacea: a critical review. Phytomedicine : international journal of phytotherapy and phytopharmacology, 10(1), pp.66–86.
Medicinal properties of Echinacea: a critical review. Phytomedicine : international journal of phytotherapy and phytopharmacology, 10(1), pp.66–86.
Zinc and immune function. European Journal of Clinical Nutrition, 56(S3), pp.S20–S23.
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