What Are Negative Calories? by Tanya Zilberter , PhD

This is an article from the series: "Diet and Body Coverage." It first appeared at dietandbody.com/Negative_calorie_1.html

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Chances are that you are familiar with extremely popular Negative Calorie Diet (tm) attracting online dieters by the NEGATIVE CALORIE idea. Recently, it became clear (at least to me) that the foods, which can be called "negative calorie foods" come in two shapes. One is pure low-fat, low energy density, high-fiber foods. Another group looks opposite in every respect except it also can qualify for having negative calorie effect. How can it be? Let's start with the "older" group.

Catabolic Food

It all started back in 1935 when the term "Catabolic food" was first used by Dr. Victor Lindlahr who practiced in Chicago and broadcasted his nutrition progam. The term refered to foods that had, what he called, "reverse calories" (now known as negative calories.) Dr. Lindlahr asked listeners of his radio broadcast to test his new diet and report back to him the results.

Almost 26,000 listeners did report back with an average one pound of body weight lost per day for ten days.

So, there is such thing as negative calorie food?

If consuming these foods results in overall negative calorie balance - you burn more calories than you consume - then YES, there is such a thing. But how can one tell before the foods are eaten day after day and body weight is lost indeed?

Anabolism, Catabolism, and Energy Balance

Go to Page 2

BIO:

Tanya Zilberter, PhD, is a researcher, health educator, exercise physiologist, and scientific journalist. Meet Tanya at dietandbody.com/banta/drzilberter.htm

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