(CBS)  Just because you're losing weight on a low-carb diet doesn't mean it's a healthy diet.

A study being published Tuesday in the Annals of Internal Medicine says a low-carb diet based on animal protein increases the risk for cancer and death.

However, a vegetable-based low-carb diet may contribute to lower heart disease and death rates, the research indicates.

CBS News Medical Correspondent Dr. Jennifer Ashton noted on "The Early Show" the study didn't look specifically at popular diets, such as the Atkins Diet. Instead, it generalized between animal-based and vegetable-based low-carb diets.

Full article:  http://www.cbsnews.com/stories/2010/09/07/earlyshow/health/main6841541.shtml