Imagine eating 12 pounds of food a day -- and still staying thin and healthy.

Sounds crazy, right?

Well, that's exactly what our hunter-gatherer ancestors ate for millennia!

And they didn't have any obesity or chronic diseases like heart disease, diabetes, cancer, or dementia.

Of course, I wouldn't advise anyone today to eat 12 pounds of food, because the food in our society lacks one major secret ingredient that our ancestors ate in nearly all their food -- fiber!

Fiber has so many health benefits that I've made it the entire focus of this week's blog.

But before I tell you about what fiber can do for you, let's a look a little more at the history of fiber.

Wouldn't it be great if you could boost your metabolism without even changing how much you eat?

Well, you can!

It's true.

You can rev up your metabolic engine, feel more satisfied when you eat, burn more calories, and lose more body fat -- all without even changing how MUCH you eat. 

Recent studies show how three key things -- all of which I discuss in UltraMetabolism - can accomplish these goals.

The first is meal timing and meal frequency; in other words, when you should eat and how often.

The second is the role of protein in controlling appetite centers in the brain, increasing caloric burning, and reducing belly fat and weight.

The third is the role of green tea in turning up your fat burning thermostat.

What do all these things have in common?

They all stem from one central idea: an increase in thermogenesis, the creation of heat in the body -- literally, turning up your metabolic fire.