Better out than in

The Mediterranean diet will increase flatulence, but it has benefits for you and the planet

- By Michael Mosley, Illustration by Joe Waldron

I am a big fan of the Mediterranean diet, which is rich in oily fish, nuts, vegetables and legumes (such as lentils and red kidney beans). There's a lot of research showing that this way of eating reduces your risk of heart disease and type 2 diabetes. And we also know that switching from a typical Western diet to a Mediterranean diet can be an effective way to improve your mental health, with studies showing that it reduces rates of anxiety and depression.

But there are a couple of downsides to the diet. Anyone who's started eating more fibre-rich food (or fermented foods, such as sauerkraut) will know that you soon start producing much larger stools and far more wind.