Michael Mosley was 'blown away' by the health challenges faced in ...

Late television doctor Michael Mosley became "very interested" in Indigenous health issues while filming in remote New South Wales, according to a physiologist who introduced him to outback Aboriginal communities. 

The body of Dr Mosley was found after a five-day search on the Greek island of Symi on Sunday local time, where he had been holidaying with his wife Clare Bailey Mosley.

Mr Kelly says "the more we caught up, the more we realised we had in common".(Supplied)

Dr Bailey Mosley said the television presenter, famous for shows such as Australia's Health Revolution and Australia's Sleep Revolution, "took the wrong turn and collapsed" while walking alone along the rocky coast.

While filming Australia's Health Revolution, Dr Mosley was "blown away" by the challenges facing remote communities, according to Indigenous exercise physiologist Ray Kelly.

"We've lost a guy who has made a big impact in health across many countries, but he loved Australia, loved coming here and he was very interested in the health issues we have here," Mr Kelly told ABC News Breakfast.

In March, the first drop of Closing the Gap target data for 2024 showed life expectancy, birth weight and suicide rates were all areas of concern for Indigenous communities. 

Mr Kelly, who appeared with Dr Mosley on 2021's Australia's Health Revolution and has also featured as a trainer on The Biggest Loser Australia, said Dr Mosley and Dr Bailey Mosley both took a keen interest in improving health outcomes in Indigenous communities. 

"Both himself and Clare were very interested in the issues in Aboriginal communities and [were] very respectful people, really keen to learn more about it and were just blown away about what some of the communities had to deal with," he said.

"We went to some great areas and had some bush honey and a range of things. They loved it.

"The more we caught up, the more we realised we had in common and were following the same research.

"He was very interested in the great outcomes we were getting in remote Aboriginal communities."

Mr Kelly said Dr Mosley achieved such prominence in Australia due to his knack "for taking complex issues and making it in a simple format that everyday people could understand".

"Our thoughts are with Clare and the family," he said. 

"They are very tight and must be going through hell right now."