When it comes to medical claims, it can be hard for the general public to tell which is fact and which is fiction given many of us don't have a medical degree.
However with myths spreading online thank to the rise in social media, one doctor has thankfully taken to the internet to share a few things we need to know.
Dr Karan Raj - an NHS surgeon and social media educator - has said that when it comes to the likes of our immune system, all too often he sees shops with "misleading" claims about how certain products can benefit you when in reality, they may be doing nothing at all.
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Taking to TikTok, Dr Raj said that the tips are "scientifically proven shortcuts to supercharge your immune system."
He explained: "Your immune system is an incredibly complex network of working together to protect your body from badness. An overactive immune system can lead to problems.
"If you go into any health food shop, you're confronted with row upon row of capsules, sprays, gummy sweets - all claiming to boost your immune system. But how much good do these things actually do?"
Pointing his followers in the direction of his latest YouTube video for the full insider knowledge, he promised that the tips don't "involve crystals, detox juices or coffee enemas" and stressed that it was important to know the truth about medical claims as an overactive immune system can sadly lead to issues such as allergies, autoimmune diseases like multiple sclerosis and all sorts.
So what are some of his tips?
1. Eat Fibre
When it comes to diet it can be hard to tell what you shouldn't and shouldn't be eating - sugary and fatty foods aside.
Dr Raj went on to say: "There's one food food group which can make a big difference that 90% of us in the UK aren't getting enough of.
"Fibre supports the health of your gut microbiome - the collection of microbes in your gut to help break down your food, remove toxin and train your immune system to fight off infection."
He explains that the "gut bugs" act as a defence barrier against diseases and produce vitamins such as K in order to support efficient functioning of your immune system.
He also said that if you want to help your immune system, one of the first things people should do is cut out as much alcohol as possible as it can "supress your immune system and reduce the numbers of good microbes in your gut."
2. Exercise
This may not be possible for everyone but if you can make time for it, just 20 to 30 minutes of vigorous exercise a day can help which reduces your risk of getting sick by 20% - even a 30 minute walk can make a massive difference.
So if you have time at lunch or want to get some fresh air, this will not only help clear your mind but help you in the long run too.
3. Embrace the cold
After a hard day of work there is nothing like coming home to a hot bath or shower and unwinding.
However - brace yourselves - cold showers are also said to help the immune system, over people who take a warm shower, by as much as 30% making it less likely for them to call in sick.
4. Catch some Zzzz
The doctor said that as a surgeon when he is sleep deprived he feels "rubbish" as most of us do but has to ensure he gets sleep for his patients.
Despite it being easier said that done, "sleep increases the efficiency of white blood cell activity and supports the production of antibodies which serves as the body's immunological memory.
5. Ignore the health food shops
The NHS surgeon admitted that when you walking into any health shop you're confronted by a number of products claiming to boost your immune system.
He says that people should be looking out for vitamin C products as it helps with the production and activity of white blood cells however most people in "wealthy countries get all the vitamin C they need from their diet - even a Kiwi contains 100% of the stuff. Our bodies can't store vitamin C either so any excess is just going to end up being flushed down the loo - just like all that money you spent on the supplements."
He added that whilst there is little evidence to show that taking these supplements will stop you from falling ill, if you have a cold taking that can reduce how long you have it - but only by about eight per cent which could count as roughly 10 hours of feeling less groggy.
He warns that taking too much however, can result in diarrhoea, nausea and kidney stones so it's always worth reading how much you should take and what not to go over.
You can watch Dr Karan Raj's full video for more health facts here.
