A doctor has recommended eating green bananas for their health benefits. It may sound strange but according to one expert under ripe bananas could work wonders for your gut health. And it is not just green bananas that could have these benefits but a number of other specific foods such as cooked and cooled potatoes, and raw oats.

This is because they contain something known as resistant starch. NHS surgeon Doctor Karan Raj, better known online as Dr Raj, took to social media platform TikTok to explain more. To illustrate his point he first showed another content creator’s video who claimed recooked rice helped him manage his blood sugar levels.

The video said: “Here's a simple trick that helped me manage my pre-diabetes. Cooking, cooling and even freezing rice. When you cook rice, the heat makes starch molecules absorb water and swell.

“This makes rice soft and easy to digest, but when you cool and freeze the rice, the starch molecules reorganise into a crystalline structure. This forms what's called resistant starch.” Green bananas are the best.

Dr Raj explained that there are other ways to get resistant starch into your diet. “If you want more resistant starch in your diet but don't just want to eat rice, you can do this. Resistant starch not only helps to feed your existing good gut bacteria but also helps to increase their numbers too.

” He said there are five different types of resistant starch and “you want to try and get a mix of them” for good gut healt.