You're familiar with the phrase "diet wars." Some people swear low-carb is the way to go. Others say such hi-fat programs will kill you; what you really need is a vegetarian diet.

For years - no, make that decades - we've been warned about the dangers of dietary fat. It has too many calories, it leads to high cholesterol and heart disease, too much can cause obesity, and on and on.

Catch the latest health news: The diet wars continue- low-carb v. low-fat, is either superior? A novel heart failure drug gets the thumbs up, plus why surgery for meniscal tear due to osteoarthritis may not be your first option