The WPP agency was appointed without a pitch and will handle media activity across DRTV, radio and third party inserts.
Diet Chef was founded in 2007 in Scotland and operates in the UK and Germany, serving 80,000 customers. The service provides 1,200 and 1,500-calorie-a -ay hampers as part of a weight-loss programme and was founded by chef Kevin Dorren.
The incumbent on the account was All Response Media.
Liz Dale, head of marketing at Diet Chef, said: "We are pleased to be working with Mindshare on optimising our TV buying. The Diet Chef brand is going from strength to strength and we look forward to working with Mindshare to broaden our customer appeal and meet our ambitious targets for growth."
Lucy Stafford, managing director for direct at Mindshare, said: "This is an exciting young business that has been trading for three years and has ambitious growth plans.
"We are really excited to be working with such a fast-growing and dynamic direct response business and look forward to working with Diet Chef to achieve their business targets."
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