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Volumetric
is based on the fact that people like to eat more and many times
will eat till they are full. Volumetrics is an approach to eating
that helps satisfy hunger with fewer calories.
The term
Volumetrics is used by Barbara Rolls, Ph.D., Guthrie Chair of
Nutrition at Penn State and former president of the North American
Association for the Study of Obesity, and award-winning journalist
Robert A. Barnett in their book, Volumetrics: Feel Full on Fewer
Calories. The title of the paperback edition is:
Weight-Control
Plan: Feel Full on Fewer Calories.
In addition
to this book Rolls has published more than 200 articles on Volumetrics.
Rolls' approach
is to help people find foods that they can eat more of that
are low in calories. The hook of Volumetrics is its focus on
satiety, the feeling of fullness. Rolls explains that people
feel full from the amount of food they eat not the type of food
or number of calories they are eating.
HOW THE
PLAN WORKS
Volumetrics
is based on evaluating the energy density of foods. This concept
is crucial to the whole diet. Energy density is the number of
calories in a specified amount of food. Some foods that are
very energy dense, are: fats, have a lot of calories packed
into a small volume. Water is at the opposite side of the spectrum
containing no calories. But drinking water alone does not satisfy,
the water must be contained within the foods.
Some examples
of very low-density foods include:
Non-starchy
vegetables -- Cucumber is an excellent example
Nonfat milk
Soup broths
Very high-density
foods include:
Crackers
Chips
Cookies
Chocolate/Candies
Nuts
Butter
Oils
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