There was a programme on the other night where someone done this.
Lauren and Robyn from Watford have 12 days to slim down before a 30th birthday party, with one eating half a grapefruit before each calorie-controlled meal and the other going on the apple cider vinegar diet. Two mums from north London want to lose weight for a friend's daughter's bat mitzvah in six weeks' time, so Emma goes on a regimen to balance her gut bacteria, while Elisa takes on the blood-focused `Eat Right for Your Type' diet, and Carl and Paul in Wigan go on raw and fast food diets. Xand also sheds light on some of the latest dieting trends and diet obsessions, including DIY enemas
It was on Monday night 8pm Channel 4. How to lose weight well.