Butyrate benefits: Why it matters & how to boost it

Butyrate benefits go beyond gut health. This powerful short-chain fatty acid is produced by your gut bacteria and plays an important role in supporting the cells lining your colon, maintaining the gut barrier and regulating immune responses.

Did you know that your gut is home to a huge community of microorganisms, including bacteria, fungi and other microbes?

This diverse community plays an important role in your overall health. Different microorganisms produce different compounds that can support digestion, nutrient production, immune regulation and a healthy gut environment.

One particularly important group of compounds produced by gut bacteria is short-chain fatty acids (SCFAs).

When you eat fibre-rich foods such as fruits, vegetables, whole grains and legumes, some of that fibre passes through your stomach and small intestine without being fully digested. It then reaches your large intestine, where gut bacteria ferment it and produce SCFAs such as acetate, propionate and butyrate.¹

But what exactly is butyrate, and why is it so important for your gut?

What is butyrate?

Butyrate is a short-chain fatty acid produced when beneficial gut bacteria ferment certain types of dietary fibre.

It is particularly important for the cells lining your colon, but research also suggests that butyrate can influence the gut barrier, inflammation and immune function.²

The amount of butyrate your gut produces depends partly on the types of bacteria living in your microbiome and the foods you eat to support them.

The benefits of butyrate

Butyrate is a real workhorse when it comes to supporting a healthy gut. Here are some of the key butyrate benefits researchers are investigating.

1. Nourishes the cells that line your colon

One of the best-known roles of butyrate is providing energy for colonocytes, the cells that line your large intestine. These cells absorb water, electrolytes, and short-chain fatty acids, forming a barrier that maintains gut health and regulates the balance of your microbiome.³

When these cells are nourished they stay healthy and strong, keeping harmful bacteria and toxins out of your bloodstream. This reduces the risk of inflammation and helps prevent digestive problems.⁴

2. Reduces inflammation in the gut

Butyrate reduces inflammation in your gut by enabling regulatory T-cells to build immune tolerance. It tells them to stay calm and not overreact to harmless substances, which prevents chronic inflammation.⁵

This is especially important for conditions like inflammatory bowel disease (IBD) and other digestive disorders.

3. Supports immune system regulation

Your gut and immune system are closely connected, and your gut microbiome plays an important role in this relationship.

Butyrate can influence the activity of different immune cells and signalling pathways, helping regulate immune responses. It influences and regulates the activity of various cells, such as cytokines, preventing excessive responses that could lead to autoimmune issues.

By maintaining the health and function of these cells, butyrate supports your immune system’s ability to identify and respond to harmful pathogens. At the same time, it helps prevent the immune system from mistakenly attacking the body’s own healthy tissues.⁶

4. Promotes broader metabolic health

Research has also explored the relationship between butyrate and metabolic health, including glucose metabolism and insulin sensitivity.

Experimental research suggests that butyrate may influence metabolic pathways involved in glucose regulation and energy metabolism.⁷

When insulin sensitivity improves, your body can better utilise glucose from the bloodstream for energy or storage, and this reduces blood sugar spikes. This is important for preventing and managing metabolic conditions like type 2 diabetes.

How do you boost butyrate?

Much of the butyrate in your colon is produced by gut bacteria when they ferment certain types of fibre and resistant starch. This means that feeding your beneficial gut bacteria is an important way to support natural butyrate production.

Foods and supplements that increase butyrate include:

1. Fibre-rich foods

Dietary fibre is one of the most important ways to support the bacteria responsible for producing short-chain fatty acids.

Good sources include:

Vegetables
Fruit
Whole grains
Beans and lentils
Nuts and seeds
Legumes
Foods containing resistant starch

Different types of fibre can be fermented by different groups of gut bacteria, producing different amounts and proportions of SCFAs.

Resistant starch is particularly interesting because it can reach the large intestine relatively intact, where gut bacteria can ferment it.

Foods containing resistant starch include legumes, green bananas and potatoes that have been cooked and cooled.⁸

The key is variety. Eating a wide range of plant foods provides your gut microbiome with different types of fibres and other compounds to work with.

2. Fermented foods

Fermented foods such as kefir and sauerkraut contain beneficial probiotic bacteria that helps balance your gut microbiome.⁹

Our award-winning kefir is an easy way to include a fermented food in your routine.

3. Prebiotic foods & supplements

Prebiotics are substances, often types of dietary fibre, that are used by microorganisms in the gut.

Including a variety of prebiotic fibres in your diet can help provide fuel for gut bacteria and support the production of beneficial metabolites such as short-chain fatty acids.

For convenient support, take a look at our Complete Prebiotic, which contains a combination of 18 prebiotic fibres.

4. Butyrate and postbiotic supplements

Butyrate is also available in targeted supplements, including products designed to provide butyrate or other postbiotic compounds.

Supplements may be useful for some people, but they shouldn’t replace a varied, fibre-rich diet. The most appropriate approach will depend on your individual diet, gut health and circumstances.

If you’re looking for a convenient way to add postbiotic support to your routine, try our Complete Postbiotic.

Want to learn more about butyrate, SCFAs and other beneficial compounds produced by your gut microbiome? Read our guide to The Power of Postbiotics.

Any questions? Contact one of our Nutritional Therapists via live chat, weekdays from 8 am to 8 pm.