Here’s how to give your friendly gut bugs the fuel they need to thrive.
Your gut’s teeming with lots of friendly microbes that are now thought to be important for your overall health.
Scientists are still working to understand the precise roles these microbes play in wellbeing but certain good bacteria are accepted as being positive for our health.1,2,3The friendly bacteria
These bacteria are some of the most beneficial in terms of keeping your digestion and gut healthy:
1. Lactobacillus
This bacteria plays a key role in gut health. A 2016 report published in World Journal of Gastroenterology found that lactobacilli can ease symptoms of IBS, like stomach bloating. potentially preventing or easing IBS symptoms.4,5Handpicked content: What is Irritable Bowel Syndrome (IBS) and how can you treat it?
2. Bifidobacteria
This is the first bacteria to colonise babies’ guts, and it’s also thought to play an important role in immune system health. However, scientists are still investigating how bifidobacteria has this effect.6,7Handpicked content: What is my immune system and why is it so important?
3. Christensenella
As part of a twin study at New York State’s Cornell University and King’s College London, researchers found that slim people have higher levels of a particular strain of this bacteria – Christensenellaceae minuta – suggesting it may play a role in managing body weight.8How friendly bacteria help us
While more research is needed into the different microbes and how each specifically helps our health, scientists agree that having a diverse community of gut bugs is important. Research shows good levels of different microbes helps keep in check the unfriendly bugs, such as salmonella, which causes food poisoning. And emerging science is showing a variety of good gut bacteria could help prevent a range of conditions, from IBS to depression.9,10,11Handpicked content: What causes heart disease and am I at risk?
Build up your bugs
So how do you ensure your good gut bacteria thrive? Eating foods rich in microbes – like yoghurt and sauerkraut – may be one way of boosting your microbiome, the community of microbes in your gut. But it’s also very important to feed the beneficial bacteria already living there.12High-fibre foods
People in hunter-gatherer communities in Tanzania have far more diverse microbes than we do, and scientists believe that may be partly because they have much more fibre in their diet. Think fresh fruit, vegetables, pulses and whole grains, which act as a sort of manure for your gut bugs.13 It’s especially important to include onions, garlic, banana, asparagus and artichoke in your diet. These foods contain inulin or oligofructose – particular types of fibre that are fermented in your gut by bacteria. So while all types of fibre feed good microbes, this group are your gut bugs’ superfood of choice.14Handpicked content: 16 superfoods to boost your immune system
Foods containing polyphenols
A 2013 study, published in The Journal of Nutritional Biochemistry, reported that this nutritious plant compound, found in berries, dark chocolate, red wine, green tea and coffee, helps gut bugs thrive. Luckily, it’s not too hard for most of us to get these in our diets!15,16Advice is for information only and should not replace medical care. Please check with your GP before trying any remedies.
Shop our Vitamins and Supplements rangeSources
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2. Ruiz L, et al. Bifidobacteria and Their Molecular Communication with the Immune System. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5722804/
3. Medical News Today. Increasing certain strain of bacteria in the gut ‘could reduce, prevent obesity’. Available from: https://www.medicalnewstoday.com/articles/285122.php
4. Sivieri K, et al. Lactobacillus acidolphilus CRL 1014 improved ‘gut health’ in the SHIME reactor
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12. BBC. Is fermented food a recipe for good gut health? Available from: http://www.bbc.co.uk/news/health-35780468
13. Schnorr SL, et al. Gut microbiome of the Hadza hunter-gatherers. Available from: https://www.nature.com/articles/ncomms4654
14. Niness KR. Inulin and Oligofructose: What Are They? Available from: https://academic.oup.com/jn/article/129/7/1402S/4722577
15. Cardona F, et al. Benefits of polyphenols on gut icrobiota and implications in human health. Available from: https://www.sciencedirect.com/science/article/pii/S0955286313000946
16. Healthline. Top foods with polyphenols. Available from: https://www.healthline.com/health/polyphenols-foods