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Series 6 Episode 2

Dieters attempt the most hyped and written-about diets on the market today - which diets work best?

Two mates try the coffee and chocolate diets, a father and son give the Mexican and Korean K-pop diets a go, and two girlfriends try the macro and smart app diets. Plus: biohacking and gym bikes.

Lifestyle

Dr Helen Lawal and Dr Javid Abdelmoneim help members of the public road-test the most hyped-up and written about diets on the market