Diets such as the 500-calorie diet are called very-low-calorie diets (VLCD). Although doctors have prescribed VLCDs for many years to treat some conditions, eating so little comes with risks.

If you have been advised to go on a low-calorie diet, you may be scratching your head trying to understand exactly what it ...

Swedish researchers have discovered that a low-calorie diet can register a false positive on certain in-car ignition interlock devices that disable a vehicle if alcohol is detected on one's breath.