The retailer will be opening DnaNudge pop-ups at its Waitrose Canary Wharf and John Lewis White City stores for three months initially.

Nutrition and health manager at Waitrose, Moira Howie said: “Retailers have an important role to play in helping shoppers who want to be healthier, so we are pleased to be teaming up with DnaNudge to offer this new technology which enables customers to make more informed choices based on the dietary aspect of their DNA.”