If you've worked hard to shed those additional pounds and want to keep the weight off, a new Danish study suggests that you consider eating more protein and fewer refined carbohydrates.

Based on the findings, the researchers recommend consuming mostly what's known as low-glycemic index carbohydrates, such as whole-grain breads. The glycemic index (GI) is a measure of the ability of carbohydrates to raise blood glucose levels; those with a low GI cause blood levels to raise more slowly, explained Dr. Thomas Meinert Larsen, a co-author of the study, published in the Nov. 25 issue of the New England Journal of Medicine.

What is it about the high protein, low glycemic index carbohydrate diet that maintains weight under control? "Possibly a stronger satiating effect and more balanced blood sugar regulation," Larsen hypothesized.