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Vitamin D levels through winter
At the end of a recent nutrition talk I did for a cycle club, someone asked me what was the most important of my recommendations for winter. Optimising Vitamin D levels was my number one recommendation for a number of reasons. Not least that levels in the general population (certainly in the UK and other northern countries) are now so low that they are becoming a major health concern. Whilst sports people might be expected to spend more time in the sun, enabling the skin to synthesis vitamin D through ultraviolet (UVB) radiation exposure, research shows that most still have...