BBC Science Focus Magazine

QUESTION OF THE MONTH

KARL STEWART, LEICESTER WHY DOES PROTEIN MAKE ME FART?

Speak to dieticians, gastroenterologists or nutritional scientists and they’ll say that carbohydrates areintolerance. Protein sources like lentils and beans often come with fibre and a type of sugar called oligosaccharides. Neither of these are easily digested and can also cause flatulence. A lot of meat and dairy products contain sulphur, which turns into hydrogen sulphide as it passes through the body and smells like rotten eggs. Farting is as natural as breathing but if you want to reduce the frequency of your emissions, try experimenting with your protein sources or diet in general. Also, chew your food and eat slowly.

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