Three bottles of better Guts Single strain probiotics, LGG and BB-12.  One is lay down and spilling out.  Blue background

Friendly bacteria backed by hundreds of clinical trials. Real science. Real results. Gut health never felt this good.

Single-strain formulas. Real evidence. No Fillers. No Chemicals.

Feel the difference for yourself

Your Microbiome and You

Curious how your microbiome can influence the symptoms you feel? Click an image below to find out more.

Bloated?

Tired of bloating? Not sure what's wrong?

Antibiotics and your microbiome

They save lives, but how do they impact your gut microbiome? 

Constipation or Diarrhoea?

Regularity and our microbiome are linked. Here's how.

Bloated?

Bloated?

Bloating: What's happening in your gut?

Bloating is one of the most common digestive complaints, often leaving us feeling uncomfortably full, swollen or tight around the abdomen. But what actually causes it, and could our gut bacteria be playing a role?

What causes bloating?

Bloating is often associated with a build-up of gas in the digestive tract. Common causes include eating too quickly, fizzy drinks, constipation, food intolerances and stress. Sometimes, however, it's not the amount of gas that's the problem, but how effectively our digestive system moves it along.

What role does the microbiome play?

Our gut bacteria help digest foods that our bodies cannot break down on their own, particularly certain carbohydrates and fibres. This process, known as fermentation, produces beneficial compounds but also releases gases such as hydrogen, carbon dioxide, and even methane, which can contribute to bloating and discomfort.

The composition and activity of our microbiome can influence how much gas is produced, how quickly food moves through the intestine and how comfortably we digest it.

What can we do about it?

The best starting point is identifying foods that trigger excessive fermentation. Highly fermentable fibres such as inulin, along with certain artificial sweeteners and sugar alcohols like malitol or sorbitol found in sugar-free foods, can contribute to bloating in sensitive individuals. Processed sugar can also have an effect, so sticking to a natural alternative is a good start. 

Alongside dietary changes, supporting the gut microbiome is key. This can be done with a good home made fermented food, or a good probiotic supplement, either can help.

The key is finding the right balance between nourishing our gut bacteria and avoiding the foods that cause discomfort.

Hit the button below to explore the Gut Health Hub for more info.

Antibiotics and your microbiome

Antibiotics and your microbiome

Antibiotics and your microbiome: what’s happening?

Antibiotics revolutionised medicine, helping us to fight bacterial infections that up until that point had been lethal, and they continue to save lives today. But, while they do target harmful bacteria, most of them also target the beneficial bacteria that live in our guts and influence almost every aspect of our health. So, what does this mean for us?

What happens when we take antibiotics?

Antibiotics work by killing bacteria or preventing them from multiplying. Unfortunately, many antibiotics cannot distinguish between harmful bacteria and the beneficial microbes that make up our gut microbiome, and so when we take them they kill a wide variety of our gut’s natural bacteria. 

Our gut microbiome is an ecosystem, much like a rainforest, and if we kill of a large number of bacteria all at once, it can throw that whole balance off. 

How does this affect our microbiome?

Our gut bacteria play important roles in digestion, immune function and maintaining the intestinal barrier, amongst many other important roles. When antibiotics disrupt these microbial communities, we can experience side effects in the short term, the most common being diarrhoea.

The biggest issue comes in the long run. The loss in microbiome diversity can allow bad bacteria to grow out of control in some cases, often causing long term issues, and in some instances causing more problems than there were before the antibiotics were ever started! 

What can we do about it?

Supporting our gut microbiome during antibiotic treatment is paramount here. 

Clinical research has shown that selected probiotic strains can reduce the risk of antibiotic-associated diarrhoea. In fact, the European Society for Paediatric Gastroenterology, Hepatology and Nutrition (ESPGHAN) recommends considering certain strains, including LGG, for children at increased risk of this complication.

A good probiotic food is also an option, but needs to be home made, strong, and consumed every single day. 

Couple your microbiome support alongside a good diet and plenty of hydration, and you’ll  be taking a good step in the right direction to supporting your microbiome during antibiotic treatment.  

Want a bit more detail? Hit the button below to read our article on antibiotics in full, how they influence your microbiome, and what that means for you.

Constipation or Diarrhoea?

Constipation or Diarrhoea?

Diarrhoea or Constipation? Here’s what’s happening. 

Diarrhoea and constipation might seem like opposite problems, but actually both can be directly influenced by the same thing: our gut microbiome. The trillions of bacteria living in our digestive system help regulate how our intestines function, influencing everything from bowel movements to stool consistency to how much gas we produce.

What causes diarrhoea and constipation?

Diarrhoea often happens because the contents of your intestines move too quickly, or there is too much water left in the bowel. This can be caused by a few things: food intolerances, medications such as antibiotics, and digestive disorders are all common reasons. The biggest reason, however, is typically the introduction of bad bacteria, or infections. Diarrhoea is a natural defence mechanism, and often a sign the body is trying to get rid of something.

Constipation on the other hand is normally the opposite. In this instance too much water is absorbed, leaving the stool hard and difficult for the body to pass. This can be caused by dehydration, inactivity and certain medications, and a lack of fibre. It can also be caused by our bacteria…

How does the microbiome influence them?

Our gut bacteria help regulate intestinal motility, water balance and digestion. They produce compounds called short-chain fatty acids, which can influence the nerves and muscles responsible for moving food through our intestines, and in doing so control how efficiently our guts can move food.

Disruptions to the microbiome, sometimes caused by infections, antibiotics or dietary changes, can all therefore influence how effectively our guts function, often leading to issues like constipation or diarrhoea. 

What can we do about it?

Supporting a balanced microbiome is one of the best ways to care for our digestive wellbeing. Clinical research has explored how selected live bacterial strains, including LGG in antibiotic-associated and infectious diarrhoea, and BB-12 in bowel regularity, influence these digestive conditions, with positive results. 

Coupling this approach with staying hydrated (especially during diarrhoea), sticking to a balanced diet, and ensuring you’re getting enough fibre, can all help to maintain a more regular bowel. 

Want to know more? Hit the button below to read the full article.

Build Your Gut Routine

LGG Balance

LGG Balance

LGG Balance

An iconic Lactobacillus, and the most studied probiotic bacteria in the world. Ideal for those experiencing bloating, those on antibiotics, gut-brain support, and immune support.

£24.99 GBP
BB-12 Defence

BB-12 Defence

BB-12 Defence

A friendly Bifidobacterium with decades of clinical study. Recommended for those seeking immune support, digestive regularity including constipation and diarrhoea, skin support including eczema, and those on antibiotics.

£24.99 GBP
Complete Gut Duo

Complete Gut Duo

Complete Gut Duo

The full package. Two microbes with over 80 years of research between them, the ultimate in science-led microbiome support, and our most popular offering.

Sale price  £39.99 GBP Regular price  £49.98 GBP

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The most powerful duo in live bacteria

High Strength.

Our single-strain formulae contain 12 billion live bacteria, using clinically tested, evidence backed strains.  Manufactured in the UK using live cultures grown and produced in the EU.

Backed By Gold Standard Science.

Our strains of bacteria are supported by hundreds of gold-standard clinical trials. We rely on proven research, not trends, to shape our formulas, ensuring each blend delivers reliable, evidence led support for your gut.

Clean Formula

Every product is vegan, gluten-free, non-GMO, and gelatin-free. We also avoid common fillers, using bamboo-derived silica instead: a plant-based flow agent that helps keep our formula clean. No artificial additives. No unwanted extras.

Targeted Release.

Housed in a delayed-release capsule, this smart delivery helps protect from stomach acid, and ensures more of the live cultures reach your gut intact, right where they’re needed most for optimal impact.

Start building a healthier microbiome

"After trying BetterGuts probiotics consistently, I noticed a real improvement in bloating and overall digestive comfort. I love that the formulas are simple, easy to incorporate into daily life, and focused on supporting gut health in a practical way".

Maria Cooper, Healthy Bowl Blog photograph

Maria Cooper. Dip. CNM Nutritional Therapist

Probiotics Trusted by Professionals

Backed by Evidence. Not guesswork. 

Our formulations are built around the most well-researched microbes in the world, and plant-based fibres carefully chosen to work with the gut microbiome, for well rounded support. 

Every component is selected with purpose, backed by published research, and included to serve a clear role in the formula. No unwanted fillers, and no hidden extras.

380+ Clinical Studies

Two of the world's most researched probiotic strains in the world, backed by over 380 human clinical studies between them.

1,000+ Scientific Publications

Supported by more than 1,000 peer-reviewed publications across gut health research.

40+ Years of Research

Four decades of scientific investigation and real-world use in probiotic nutrition. Not theories, real evidence, real results. 

Choose science-backed gut support Explore the Science

"I genuinely can't thank BetterGuts enough. Within just two weeks, my bloating, cramping and constipation had improved dramatically, making such a difference to how I felt every day. I love that the formulas are simple, made with clean ingredients and backed by clinically proven probiotic strains. It's a brand I trust, has become part of my daily routine, and one I wouldn't hesitate to recommend to anyone looking to improve their gut health."

Louise Jane Vegan Choice Awards CEO

Louise Jane. CEO. Vegan Choice Awards

Award Winning Probiotics

From Our Community

See the latest from Better Guts on socials, including behind the scenes updates, educational content, and every day gut health tips

Your questions, answered

Explore our most frequently asked questions or use our chat to ask our founder Matthew directly.

Got more questions? View FAQs
I took probiotics before and they didn’t work! What makes these any different?

It all comes down to the bacteria we use! Did you know that a lot of cheap probiotics on the market today use bacteria that have never been proven to have benefits in humans? Or even tested in humans? We decided there was a better way. The two microbes we work with, LGG and BB12, are the two most clinically proven bacteria in the world, each with hundreds of human clinical trials to demonstrate what they can do. So, with Better Guts you know you’re getting bacteria backed by real clinical science, not just hype and marketing!

Why is ‘single strain’ better than an everyday blend of different bacteria?

Everyday blends are sometimes good, and there are some on the market that use very good bacteria, BUT, to make the product affordable a lot of the time those bacteria have to be in a weaker concentration. If it says 25BN CFU on the label, but there are 5 different bacteria, there’s not that much of each one in there! The problem with this is that while the bacteria will work to some extent, they’re not in a strong enough concentration to have a really solid impact, and can get ‘lost in the noise’ of your gut microbiome. Using single strains in each product allows us to put these microbes in a high concentration of 12BN CFU per serving, making sure you get enough of each clinically proven microbe to really get the effects you want, and to build up a solid population of the beneficial bacteria!

What do probiotics actually do?

Our gut is filled with trillions of bacteria. In fact, by some estimates more than
50% of our body is bacteria! These little creatures exist alongside each other,
and they can have an impact on every aspect of our health. They can affect
brain function, organ function, mental health, digestive health, you name it,
they have an impact. However, some of the bacteria that can take root are
pathogenic, and can cause health problems in humans, especially if they’re in
large populations. So, with probiotics we send in live bacteria from the
beneficial families. This way we can keep the population of good bacteria
strong! They can then help to outcompete the bad bacteria and keep their
numbers low, helping to prevent them from having an impact on your health.



What can these products do for me?

When it comes to everyday probiotic gut support, this is a team it’s hard to beat! They’re both very good for people who experience digestive issues such as bloating, cramping or diarrhoea, as well as both being solid choices to take
alongside antibiotics to help rebuild the microbiome. They also work really
well together to help keep the bad bacteria supressed, maintaining a strong population of the good guys to keep your gut resilient! And of course, as just a solid every day probiotic, they work as an unbeatable team with real clinical evidence to keep you consistent and your gut happy!

How long do I have to take them for?

With probiotics consistency is key! You should start to notice effects after a
couple of weeks, but for the best results you should take them consistently for
at least a few months. This allows the bacteria to build up a strong
population. Once they get to a good number they start to really have an impact on the population of bad bacteria, and that’s when you start to get the best results! Once you have that population built up, sticking with it in the long run will help to keep their numbers high, your gut consistent, and your routine solid and predictable.