A doctor has issued a warning about Vitamin D overdose, urging Brits to adhere to recommended dosages. Dr Oscar Duke featured on BBC Morning Live to outline the health dangers of excessive consumption. According to the NHS, vitamin D is crucial for regulating calcium and phosphate levels in the body, which are necessary for maintaining healthy bones, teeth and muscles. The health service also highlights its important function in bolstering the immune system.
However, Britain’s climate means many individuals struggle to obtain sufficient vitamin D naturally through sunlight exposure. Supplementation is consequently advised to address this deficiency. « In these winter and autumn months, it’s really important to supplement our vitamin D because we don’t get enough from sunlight in the UK, » Dr Oscar stated. Yet consuming excessive amounts can result in severe health problems.
Speaking earlier this week he added: « The NHS and government recommendation is that we take 400 international units of vitamin D a day during those autumn and winter months. » Those aged over one year are recommended to take a daily 10 microgram supplement – equivalent to 400 IU – from October through to early March.
Taking more than the advised dose is surprisingly straightforward, as over-the-counter supplements frequently contain between 800 and 1,000 IU. Dr Oscar cautioned: « If you’re getting over 4,000 international units, then you’re at potential risk of vitamin D overdose. » The NHS warns that consuming excessive vitamin D over extended periods can lead to a build-up of calcium in the body, a condition called hypercalcaemia.
« If you get too much calcium in your body, then that can affect your heart, » said Dr Duke. « You can get calcium stones in your kidneys, and it can really upset your tummy. »
Whilst toxicity is regarded as uncommon, the Food Standards Agency recommends that 4,000 IU (100 micrograms) daily is the safe upper threshold for adults. Vitamin D deficiency continues to be widespread in the UK, with Government figures revealing approximately one in six adults have insufficient levels during winter, based on the National Diet and Nutrition Survey.
Dr Oscar Duke emphasised to viewers that adhering to the recommended dosage is essential for safely obtaining the benefits of vitamin D. Surpassing the safe threshold can result in severe health complications. Always verify supplement labels and seek medical advice if uncertain about your intake.
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