This information is from the book "Calorie Queens". I went to the footnote and visited the website listed as the source. Kind of interesting information.
Here's a comparison of the various diets out there that shows what the typical consumption is in calories:
Northwestern Nutrition
High-fat, low-carb diets: 1414 total calories
- Dr. Atkins Diet
- Zone Diet
- Sugar Busters
- Protein Power
Moderate-fat diets: 1450 total calories
- USDA Food Guide Pyramid
- DASH (Dietary Approach to Stop Hypertension) Eating Plan
- American Diabetic Association
- Weight Watchers
- Jenny Craig
Low-fat and very-low-fat diets: 1450 total calories
- Volumetrics
- Dean Ornish's Eat More, Weigh Less
- New Pritikin Program
Quote from "Calorie Queens", p. 14:
"Looking beyond the theories, discard the complex rules, ignore the complicated charts, and where do we end up?
Even when we're following a diet that theoretically does not restrict total calories, we consciously or unconsciously decrease our caloric intake. ..... It's not which diet we choose, it's how long we manage to stay on it that determines whether or not we lose any weight.
Any diet that decreases caloric intake will produce weight loss."