But, earlier this 12 months, Bear Grylls revealed he had overturned his weight loss plan after his well being plummeted. “I was a massive advocate of the vegan lifestyle for years, and wrote a book on it, but my health tanked on it,” he stated. “When I got Covid a couple years ago, I doubled down on what I thought was healthy — raw juice, vegetables — and got mega-sore kidneys, almost kidney stones,” he instructed GQ journal.

“The more research I’ve done, I’ve noticed raw vegetables are really not good for you.

“I’ve began incorporating high quality grass-fed steak and liver. My lunch is meat, eggs and dairy, loads of butter, and fruit.”

The 48-year-old emphasised that he is “in opposition to nuts… in opposition to grains, wheat, and greens”. “They affected my well being negatively,” he stated.

A vegan diet

The NHS explains a vegan diet is based on plant foods, such as vegetables, grains, nuts and fruits.

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If, for example, kidney stones are identified, then treatment can begin.

Kidney stones “occur when waste builds up in your blood and sticks collectively in your kidneys to type clumps”.

Larger stones can be difficult to pass, so surgery might be required to remove them.

Bear Grylls is starring in Louis Theroux Interviews, which is airing on BBC Two at 9pm on Tuesday, November 15.

If, for example, kidney stones are identified, then treatment can begin.

Kidney stones “occur when waste builds up in your blood and sticks collectively in your kidneys to type clumps”.

Larger stones might be troublesome to cross, so surgical procedure could be required to take away them.

Bear Grylls is starring in Louis Theroux Interviews, which is airing on BBC Two at 9pm on Tuesday, November 15.