Dr Michael Mosley says there is one pill that he will take every day

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Health guru Dr Michael Mosley has made a rare exception to his no-supplement rule - revealing the one pill he's committed to popping daily.

Despite his usual stance of shunning vitamin and mineral supplements in favour of a nutrient-rich diet, the esteemed author and presenter has disclosed that there's one vitamin he won't skip. Penning his thoughts for MailOnline, Dr Mosley admits to taking this particular supplement throughout the winter months - citing its potential to reduce the risk of serious health conditions like colon cancer and dementia. Traditionally halting the intake come spring, Dr Mosley plans to continue his regimen all year round.

He explained: "During the winter months, when the sun is weak, I've always followed NHS advice and swallowed a daily tablet, because I know vitamin D is so important for a whole host of reasons. But usually by this time of year, when the sun is strong and summer is well on its way, I stop taking it."

Dr Mosley typically relies on natural sunshine and foods like oily fish and eggs to meet his vitamin D needs during the sunnier seasons. However, he notes: "Each year I get older and studies have shown that as we age our bodies become less effective at absorbing vitamin D from food and our skin also becomes less efficient at converting sunlight into this nutrient."

Highlighting differing guidelines, he mentioned that while the NHS suggests a daily dose of 10 micrograms (mcg) of vitamin D, American recommendations are higher, with 15mcg advised generally and 20mcg for those over 70, reports Bristol Live.

Dr Mosley revealed: "I take 25 mcg (1,000 IU), which is within the limits of what's considered safe but closer to the sort of doses studies show you need to take to ward off infections, cancers and maybe even dementia."