The toughest part of losing weight is sticking to a diet. And it's no different for Hollywood stars, who always have to look their best for the unforgiving cameras.

Despite the ongoing scrutiny, some celebrities get fed up with dieting and let their waistlines expand. Others take things too far, embarking on extreme diets and exercise regimens that leave them looking like a bag of bones.

But a lucky few know how to do it right. They learn to eat healthy foods and use sensible workout programs that keep them looking fabulous.

The ENQUIRER has the skinny on the diet secrets of top celebrities in a blockbuster 9-page special report. It's yet another ENQUIRER exclusive that you won't want to miss. So pick up the latest issue for our riveting look at who's winning and who's losing the battle of the bulge.