Two Canadian experts warn that fad diets garner the same results: yes, you’ll lose some weight at first, but after that you’ll plateau and slowly regain the weight you worked so hard to lose.

People trying to lose weight are often told to turn to fibre so they feel more satisfied after a meal but new research suggests protein does the trick as well.

They might be quick fixes, but do they work in the long run? We asked dietitians to take a look at celebrity diets. Take a look at which diets failed.