Cereals supplier Rude Health has secured new listings that will put it in all the big four retailers simultaneously for the first time in its history.

From next month it will be rolling out two variants of Seven Grain Granolas - already on sale in Tesco and Sainsbury’s - to Waitrose ahead of their launch into Asda in August.

Rude Health also sells organic porridges, mueslis, and a line-up of ‘thins’ made from oats, rice and multigrains.