Dr Amir Khan, a practising GP and familiar face on ITV, has reminded people across the UK to begin taking vitamin D supplements as the colder months approach. He explained that reduced sunlight exposure between October and March means most people should take active measures to maintain their vitamin D levels.
On his Instagram account, Dr Khan highlighted the significance of supplementing vitamin D, explaining that while the days might still feel bright at the start of October, sunlight during this period is insufficient to maintain adequate vitamin D production in the body. He recommended the NHS guideline of 400 international units or 10 micrograms daily.
“Everyone should be doing this,” Dr Khan urged, adding that those already deficient might require higher doses under medical supervision. Taking vitamin D can help support overall health and wellbeing during the winter months.
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The NHS advises that vitamin D plays a vital role in regulating calcium and phosphate in the body, which are essential for keeping bones, teeth, and muscles healthy. From late March or early April through to the end of September, most people get enough vitamin D from sunlight. However, from October onwards, sunlight alone is generally insufficient.
Vitamin D supplements are readily available in many high street stores such as Boots, where high-strength tablets are currently priced around £4 per pack, working out at roughly 4 pence per tablet.
Besides supplements, vitamin D can be obtained from natural food sources including oily fish, red meat, liver, egg yolks, and fortified foods.
Dr Khan cautioned against excessive vitamin D intake, pointing out that long-term overconsumption can lead to high calcium levels in the body, which may weaken bones and cause kidney and heart issues. The NHS recommends not exceeding 100 micrograms (4,000 IU) daily for adults, including pregnant or breastfeeding women and the elderly, and for teenagers aged 11 to 17.
He advised anyone considering taking supplements, especially those on medications or with underlying health conditions, to consult their GP first to ensure safety and appropriate dosage.