Body fat increases by enlarging existing fat cells (fat cell hypertrophy) or increasing the number of fat cells (fat cell hyperplasia).

Until recently, scientists thought that the number of fat cells was fixed in adults, but could be influenced by exercise and diet during childhood.

Now, we realize that things aren’t that simple. Scientists discovered that overeating combined with decreased physical inactivity can trigger increased fat cell production.

This makes people more prone to obesity, because they have more places to store fat. (more…)

Look at those shoulders, impressive! What does she eat and how does she keep her body in shape?

Bianca Kajlich is married to L.A. Galaxy soccer star Landon Donovan – who obviously knows a thing or two about proper nutrition and exercise – but when it comes to staying in shape, Bianca follows her own rules.

Bianca Kajlich’s diet “When I’m on set and I see something yummy like cake or cookies, I remember my food motto: You can always eat it later. So I take the treat home and put it in my fridge.

Then I ponder if I really want it. Sometimes it ends up in the trash, sometimes in my mouth. But at least I’ve stopped myself from eating without thinking.” (more…)

Continued from Zone Diet Foods.

Size matters Sorry but size really does matter. A serving of protein is about the size and thickness of your palm. Bad carbs should be limited to the size of a tight fist, while good carbs can be the size of two loose fists. Save the rest for leftovers. (more…)

The low-carb vegetarian diet may seem a little tricky and even counterintuitive. After all, a low-carb diet is all about protein, protein, and more protein.

Not to mention that vegetarians are generally perceived as healthy individuals who are not likely to be overweight.

So why would they be interested in a low-carb vegetarian diet? The perception could be misleading. A number of devoted vegetarians have shared with me the fact that they are overweight. (more…)

In light of what appears to be Katie Holme’s sudden weight loss, a lot of people are asking these questions: Is Katie Holmes too skinny? Is Katie Holmes anorexic?

“The bones in her back were already protruding and her arms were tiny,” says one person who saw Katie at the premiere of Mad Money.

There is no reason to believe that Katie Holmes is anorexic, but she does look rather skinny, in my opinion. Her current weight is estimated to be about 110 pounds.

“Katie has always worried about her weight,” says an insider. “She just went on a diet to lose an extra 10 pounds. She gained a few pounds in Europe but now she’s lost it all and then some.” (more…)