Gwahardd gwerthu diodydd egni i rai o dan 16 oed a chyfyngu ar y siopau tecawê bwyd poeth ger ysgolion yw dau o blith y syniadau newydd i wella iechyd pobl ifanc ac atal cyfraddau gordewdra rhag cynyddu yng Nghymru.
Banning the sale of energy drinks for under-16s and limiting hot food takeaways near schools are among new ideas to improve the health of young people and stop the rising rates of obesity in Wales.