The Copenhagen, an ultra weight loss regime; the Special K , mixing cereals and high fibre; and the Bonus Years regime are just three of the diets road tested this time
This episode sees AK and Bethany slimming for speed dating; Gemma and Charlotte are trimming for a school reunion; and couple Si and Simon want to shed weight for Manchester Pride
Rebecca and Alisha bid to lose their bikini bulges. Gary and Connor want to look trim for Gary's graduation. And Elaine and Sue from Essex hope to slim down for a work reunion.
Dr Xand asks if the bacteria in our gut is the key to weight loss.The popular dash diet gets a road test. And a pair of gym buddies try to slim down for a spa day.
The diets being tested this time include Gwyneth Paltrow's Goop detox and the NHS weight loss plan. And a look at fitness gadgets and why alcohol is so harmful to our waistlines.