Dr. Barbara Rolls and Robert Barnett wrote the book "The Volumetrics Weight-Control Plan: Feel Full on Fewer Calories."
Volumetrics is based on the concept of energy density and food satisfaction. Many foods are high in energy, and can supply a large number of calories per low volume. Volumetrics recommends many foods, which are high in fiber and water content. Volumetrics is about learning portion sizes by selecting the correct foods.
Volumetrics also recommends foods such as soups, casseroles and low-fat milks. Most processed foods should be eaten in moderation, because they are high in energy.
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