A ROCK climber ate only McDonald’s burgers for two months as part of a nutrition experiment.

Dave Macleod, 44, who has a Master’s degree in nutrition, believes “carnivore diets” can improve people’s health.

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David Macleod, 44, says his McDonald’s diet left him feeling stronger and fitter

He ate between 12 and 16 of the fast food chain’s burgers every day for eight weeks.

But he only ate the patties, not the bun, fries or other junk.

Macleod continued to climb and says the diet left him feeling stronger and fitter — and improved his mental health.

He believes it had the biggest impact on his strength and said he was able to hang one-handed for far longer holding much heavier weights during training routines.

He also said he lost half a stone, his eczema disappeared and blood tests indicated his risk of health conditions including diabetes and heart disease was reduced.

Macleod, from Lochaber, told his 70,000 YouTube subscribers: “What I’m doing isn’t science, it’s essentially a stunt, but I hope it might be thought-provoking.”

Addressing critics, he added: “I’m not suggesting everyone should choose a carnivore diet but radical diets like this might be worth considering as a therapy for some.

“Diet related disease is a huge issue. Ninety per cent of adults are expected to be overweight or obese in the West by 2050. No healthcare system can function with that.”