Dr Xand van Tulleken, Hala El-Shafie and Stacie Stewart attempt to uncover the secrets behind the most popular and over-used diets on the market today.
Xand van Tulleken
Helen Lawal
Stacie Stewart
Javid Abdelmoneim
Hala El-Shafie
Bradley Elliott
Atul Sharma
Bharat Mistri