Why do so many of us lack Vitamin D?

It is estimated that a huge % of the UK population are deficient in Vitamin D. It is also estimated that the pandemic of Vitamin D deficiency affects one billion people worldwide and is getting worse but no-one is entirely sure as to why. There are various theories including the fact that we are spending more time indoors and when we do go outside into the sun, we are slathering ourselves in sunscreen. Whatever the reason, there are things that we can do to help raise our levels.

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