Pop tax could cut obesity, says Plaid Cymru
3 July 2014 Last updated at 10:56 BST
A 20% tax on sugary drinks could cut the number of overweight people in Wales by more than 21,000, Plaid Cymru has claimed.
The party said the measure could also raise up to £45m a year which it would use to help hire an extra 1,000 doctors.
Plaid health spokesperson Elin Jones said the tax would make a difference to the nation's health.