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Curious Kids: why do some farts smell and some don’t? And why do some farts feel hot?

By Clare Collins, Laureate Professor in Nutrition and Dietetics, University of Newcastle

Why do some farts smell and some don’t, and some feel hot? – Kian, age 6, from Maleny in Queensland

Hi Kian, thanks for your interesting questions!

Let’s start with the smell. Whether or not farts smell depends on what you’ve been eating and whether or not you have an upset tummy.

Having a tummy bug can also change the smell of your poo, especially…

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