Vitamin D ‘proved to cut risk of colds and flu’

I often tell my patients to get their vitamin D levels checked. As this article shows a deficiency can cause problems in all body systems from gut dysfunction to immune and respiratory systems. Deficiencies have been implicated in multiple sclerosis and some cancers too. If you don’t get sun on about 50% of your body – without sunscreen for about 20 minutes in the middle of the day each day during the summer, then you may be deficient. The test can be done simply by sending off a blood spot and it only costs £28. This is a good time of year to do it, as unless you’ve been away for some winter sun your levels are at their lowest for the year.

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