One of the most important roles of your microbiome is to break down complex carbohydrates and fibers that the your body is unable to digest on its own. This produces short-chain fatty acids (SCFAs), which are important for maintaining a healthy gut lining, regulating your appetite, and much more!

Around 80% of your immune system is found in your gut! Your microbiome helps to train your immune system to recognise and respond to harmful invaders, and also helps to regulate inflammatory responses. In fact, an imbalance in your microbiome (called dysbiosis) is linked to inflammatory conditions like allergies, autoimmune disorders.

Research also shows there is a strong connection between your microbiome and your brain - known as the gut-brain axis. Studies have found that people with a diverse microbiome tend to have better mental health. For example, the important neurotransmitter serotonin, which is linked to mood regulation, is produced by good bacteria in your gut.