Discover
Can gut health affect mental health?
It’s thought that gut health can affect lots of different aspects of your health. Here I’ll explain what gut health means, what is meant by ‘good’ bacteria and how your gut and brain might be connected.
What is meant by gut health?
The term ‘gut health’ refers to how well your digestive system is working. Your digestive system is also known as your gastrointestinal (GI) tract or your gut. Your gut is where your body digests food, absorbs energy and nutrients, and gets rid of waste products. It includes your throat, food pipe, stomach and intestines.
Your gut contains trillions of tiny bacteria and other microorganisms. But unlike harmful bacteria that can make you ill, the natural bacteria found in your gut are good for you. This is because they help to break down the food you eat. They might also support your immune system (your body’s way of fighting off infections).
You might also hear the bacteria in your gut called good bacteria, friendly bacteria, gut flora, microorganisms, microbiota or microbes.
What can affect my gut health?
There are lots of things that can change the balance of bacteria within your gut. This includes:
- taking certain antibiotics
- having food poisoning
- having a health condition such as irritable bowel syndrome (IBS)
- having travellers’ diarrhoea
- getting older
How can I improve my gut health?
One of the best things you can do to look after your gut is to eat a balanced and varied diet. Try to include lots of fruits, vegetables and wholegrains.
Probiotics
Some people also take probiotics to try and improve their gut health. Probiotics are ‘live’ bacteria found in some yoghurts and yoghurt drinks. They’re also found in fermented foods such as kefir, kombucha, kimchi, sauerkraut, miso and tempeh. They’re also available as a supplement.
If you do choose to take probiotics, it’s important to know that there are lots of different types (strains). Not all probiotic products or supplements are made or work in the same way. If you’re a healthy person, taking probiotics is generally considered safe. But they may not be suitable if you have problems with your immune system, so speak to a GP before trying them.
Prebiotics
You can also include prebiotics in your diet. Prebiotics are a type of fibre that can’t be digested by your body. Instead, they feed the good bacteria in your gut and help them to grow. Prebiotics are found naturally in onions, garlic, asparagus, artichoke, chicory and bananas. They’re also available as a supplement.
Are gut health and mental health related?
Yes. There is a link between your gut and your brain. This is sometimes known as the mind-gut connection, the brain-gut connection, or the gut-brain axis.
Maybe you find that if you feel anxious or stressed you experience gut symptoms yourself. You might lose your appetite, get pain in your tummy, or experience diarrhoea. Research has also shown that some digestive conditions, such as IBS, are linked with both anxiety and depression.
Can probiotics help my mental health?
We don’t know yet. Some studies suggest that changing your gut bacteria could influence your mood. Many of these studies use probiotics to change the type or number of gut bacteria people have. But there‘s not enough evidence that probiotics are helpful in treating or preventing any mental health conditions just yet.
If you’re struggling with your mental health it’s very important to speak to a GP who can offer you advice and support.
If you’re worried about your mental health, our direct access service aims to provide you with the advice, support and treatment you need as quickly as possible. If you’re covered by your health insurance, you’ll be able to get mental health advice and support usually without the need for a GP referral. Learn more today.
-
Sources Sources
- Anatomy and physiology of the gastrointestinal tract. Oxford Handbook of Gastrointestinal Nursing. Oxford Medicine Online. www.oxfordmedicine.com, published January 2021
- The Gut Microbiome in Integrative Gastroenterology. Integrative Gastroenterology. Oxford Medicine Online. www.oxfordmedicine.com, published March 2020
- Probiotics: Food Fact Sheet. British Dietetic Association. www.bda.uk.com, published June 2018
- Introduction to Gut Bacteria. Guts UK. www.gutscharity.org.uk, accessed 5 April 2022
- Give your friendly gut bacteria a helping hand. British Dietetic Association. www.bda.uk.com, published 5 September 2019
- Healthy Eating: Food Fact Sheet. British Dietetic Association. www.bda.uk.com, published 29 January 2021
- Fermented foods. British Dietetic Association. www.bda.uk.com, published 1 October 2019
- Anxiety. Young Minds. www.youngminds.org.uk, accessed 5 April 2022
- Irritable Bowel Syndrome. Anxiety UK. www.anxietyuk.org.uk, accessed 5 April 2022
- Cheung SG, Goldenthal AR, Uhlemann AC et al. Systematic review of gut microbiota and major depression. Frontiers in psychiatry 2019; 10: 34 doi: 10.3389/fpsyt.2019.00034
- Yang B, Wei J et al. Effects of regulating intestinal microbiota on anxiety symptoms: a systematic review. General psychiatry 2019; 32(2) doi: 10.1136/gpsych-2019-100056
About our health information
At Bupa we produce a wealth of free health information for you and your family. This is because we believe that trustworthy information is essential in helping you make better decisions about your health and wellbeing.
Our information has been awarded the PIF TICK for trustworthy health information. It also follows the principles of the The Information Standard.
More discover articles...
Did you find our advice helpful?
We’d love to hear what you think. Our short survey takes just a few minutes to complete and helps us to keep improving our healthy lifestyle articles.
Our latest articles
Legal disclaimer
This information was published by Bupa's Health Content Team and is based on reputable sources of medical evidence. It has been reviewed by appropriate medical or clinical professionals and deemed accurate on the date of review. Photos are only for illustrative purposes and do not reflect every presentation of a condition.
Any information about a treatment or procedure is generic, and does not necessarily describe that treatment or procedure as delivered by Bupa or its associated providers.
The information contained on this page and in any third party websites referred to on this page is not intended nor implied to be a substitute for professional medical advice nor is it intended to be for medical diagnosis or treatment. Third party websites are not owned or controlled by Bupa and any individual may be able to access and post messages on them. Bupa is not responsible for the content or availability of these third party websites. We do not accept advertising on this page.
For more details on how we produce our content and its sources, visit the About our health information section.
^We may record or monitor our calls
