Question

Do you think the microorganisms in the large intestine have a role other than producing in odour in the faeces?

Answer 1

There are many other roles of microorganisms.

What do beneficial microorganisms in the gut actually do?

• Break down undigested food.

• Neutralise some of the harmful by-products of food breakdown.

• Aid the absorption of nutrients.

• Produce certain vitamins such as Vitamin K, needed for blood clotting.

• Make life uncomfortable for harmful bacteria by competing for food and controlling levels of oxygen and acidity in the gut so that the living conditions favour beneficial species.

• Because the majority of the immune system is located in your gut, beneficial bacteria also help support the body’s natural defences.