The Volumetrics diet
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Be aware: this is only the goal of this diet, not necessarily its outcome. Results vary from person to person. Consult your doctor or dietician before starting this (or any other) diet.
The Volumetrics diet was invented by Barbara Rolls. She states that people eat and drink the same 'volume' of products every day, regardless of the number of calories. Therefore, you should choose products with a low concentration of calories.
On the homepage you can compare this diet with other diets.
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Barbara has divided all type of foods and drinks into four groups, based on their calorie concentration.
Group 1: Very low calorie concentration. This category includes fruits, vegetables without starch and bouillon soup.
Group 2: Low calorie concentration. This category includes brown rice, wholemeal pasta, lean protein products and low-fat dairy products.
Group 3: Medium calorie concentration. This category includes bread, desserts, meat and cheese.
Group 4: High calorie concentration. This category includes crisps, chocolate, biscuits, nuts, butter and oil.
The aim here is to lose weight by eating fewer calories a day than normal (see the calorie counting page for your daily requirement). You try to do this by eating more products from group 1 & 2, less from group 3 and little to none from group 4.
The idea is that, by replacing products from group 4 with products from group 3 or lower, you consume far fewer calories without having to eat less.
Barbara Rolls recommends getting a pedometer and taking extra steps each day. The ultimate goal is 10,000 steps per day.
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Consult your doctor or dietician before starting this (or any) diet.
Barbara Rolls wrote ‘The Ultimate Volumetrics Diet’. You can find more information about this diet in the book.
This page has been checked, and warnings have been added by, Jolande, dietician. Read more here.
Did you notice a mistake on this page? Please let us know.
Try to take extra steps per day. A total of 10,000 steps a day is ideal.
Barbara Rolls is a professor at the University of Pennsylvania with long research experience. Her advice has therefore been researched. Clear and fairly simple diet although I hope good fats (nuts, oil) are allowed in moderation as you just need them. Good answer to the question people often ask when dieting what can I eat?
With the professional help of a dietitian it should be easier to reach your goals. Please contact a dietician in your area or talk to a doctor before starting any diet.
Please take note that most diets do not have a scientific basis.
Consult your doctor or dietician before starting a diet, especially if you have a chronic condition like diabetes, cardiovascular disease, lung disease or kidney disease.
If you think you might have an eating disorder (like anorexia or bulimia), it is important to look for professional help. Contact your (house) doctor or find help elsewhere. Here you can find a list of several websites that can provide (online) help. These sites also provide information for people that know someone with an eating disorder.