Question: What's a free radical

Ciara O'Donovan answered on 9 Nov 2017:

Free radicals are natural byprdocuts of bodily functions such as eating or breathing. There are also free radicals in the environment which you may be exposed to. Free radicals can potentially cause damage to your body but antioxidants (such as vitamin C) stabilise free radicals and so prevent any damage by them. This is why it is important to eat lots of fruit and veg as they are high in antioxidants.