They say its about unhealthy food and drink, but why are drink refills considers a health issue to the point of requiring law? Plenty offer more than just unhealthy soda and trash like that.
Health Secretary Eluned Morgan has launched a consultation to restrict "promotions of food products high in fat, sugar and salt".
Article specifically calls out some names:
It includes a proposal to prohibit retailers from offering free drink refills, which many high street restaurants including Nando's and Five Guys offer.
Taking Five Guys for example they offer coca cola freestyle:
Which offers options such as minute maid lemonaid, vitamin water, etc. with non-sugar options. This law would punish those same drinks in the name of health.