63% of the UK Is Overweight or Obese - What's Really in Your Supermarket Trolley?

Sunna van Kampen, founder of Tonic Health, joins Tim Gray to reveal what is really hiding in your supermarket trolley, from fish fingers that are less than half fish to white chocolate that is no longer chocolate, and why he believes fixing the nation's health starts with what you put in your basket, not with biohacking.