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Series 5 Episode 5

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

Dr Xand and Dr Helen help people test popular and hyped summer diets, including the summer sandwich diet, the sexy pineapple diet and the citrus diet

Dr Xand van Tulleken and Dr Helen Lawal help the public road test more of the most hyped-up diets out there