Vitamin D
 

Vitamin D

It’s uniquely difficult to get your fill of this vital micronutrient without supplementation. To produce it naturally your body relies on exposure to sunlight (often impossible in the UK), while food sources are limited to oily fish and eggs. Unless you live in the tropics and waltz around with your shirt off, you’re likely to be deficient, which makes you more at risk of every malady from depression to various cancers to heart attacks.

Recommended daily dose 2,000iu