Dr Chris Smith and the Naked Scientist team present the latest science news. Including a new form of insulin that can switch itself off before blood sugar levels fall too low, and how scientists have discovered the origins of the meteors that most commonly fall to Earth.
Plus, an in-depth look at whether vegan diets are really good for us.
For support on topics covered in this programme, you can get details of organisations within the UK by visiting the BBC Action Line website - bbc.co.uk/actionline.
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