Don’t: Stray from the rules—ever
Last updated by Kurtis Hiatt | January 07, 2013
On this diet, eat 5 Medifast products each day and one self-prepared meal. Medifast aids short-term weight loss, but isn't sustainable enough to last.
Paleo diets are based on a simple premise—if the cavemen didn't eat it, you shouldn't either. But, this can be tricky to replicate healthfully.
South Beach focuses on choosing good carbs and good fats in a 3-phase process. It may aid rapid weight loss, but it may be hard to follow long-term.