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Gut & Immunity · 5 min read

Your gut microbiome, explained

Trillions of microbes live in your gut and play a role in digestion and immunity. Here's how probiotics fit in.

Your digestive system is home to a vast community of bacteria and other microorganisms, known as the gut microbiome. These microbes help break down food, produce certain vitamins and support the immune system.

What are probiotics?

The World Health Organization defines probiotics as live microorganisms which, when administered in adequate amounts, confer a health benefit on the host. Common examples include Lactobacillus and Bifidobacterium species.

When balance is disturbed

Antibiotics, illness, stress and diet can all shift the balance of the microbiome. This may lead to digestive discomfort such as diarrhoea or constipation.

Taking probiotics with antibiotics

If you are taking antibiotics, take probiotics at least two hours before or after your antibiotic dose, unless your doctor advises otherwise.

Feed your good bacteria

Fibre-rich foods such as vegetables, fruit, lentils and whole grains act as prebiotics — food for beneficial bacteria.

This article is for general information only and is not a substitute for advice from a registered physician.