![Image](https://facecliniclondon.com/wp-content/uploads/2018/12/B12.png)
If you're feeling below par – there could be a simple explanation – Vitamin B12 deficiency. There are multiple reasons why someone way be deficient in Vitamin B12, and may affect people who follow a restricted diet (eg strict Veganism), as well as those on certain prescription medications, those with coeliac disease, and some heavy drinkers.
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