THE NON-DIET DIET: WHAT YOU NEED TO KNOW ABOUT VOLUMETRICS EATING
A long-term approach to weight loss that lets you eat more and fill up on nutrient-dense foods while keeping calories low.
Who Created It?Barbara Rolls, Ph.D., a professor and chair of Nutritional Sciences at the Penn State University in the USA.
What Is It?Rather than calorie deficit as advocated by many diets, Volumetrics Eating focuses on low caloric density. That is, foods that are high in nutrients but low in calories. This enables you to eat a large amount of food – to the point of satiety – without overloading on calories. Instead, you will fill up on foods that are high in fibre and water such as fruits, vegetables, beans, and lean proteins. Because fibre and protein take longer to digest, they keep you feeling full longer. It is this “eat more for less” approach that helps you to lose excess weight and keep them off.
How Do You Calculate Caloric Density?Divide the number of calories by the weight in grams. A serving of 100g of broccoli, for example, has about 34 calories, which puts its caloric density at 0.34. The plan divides foods into 4 categories according to their caloric density:
Category 1 (very low):Fruits, non-starchy vegetables, and broth-based soups
Category 2 (low): Whole grains, lean meats, beans, and low-fat dairy
Category 3 (medium): Bread, some desserts, cheese, and higher fat foods
Category 4 (high): Fried or fatty foods, and sweets
The Volumetrics Diet plan encourages you to eat mostly Category 1 foods, some from Category 2, a bit of Category 3, and once in a while from Category 4. Generally, no foods are completely off-limits as long as you’re mindful of the portions and frequency that you’re eating.
Does It Include Exercise?While the plan doesn’t include any specific fitness elements, it does encourage some movement throughout the day such as walking up to 10,000 steps per day.
What Does Science Say?Willpower and hunger are among the factors that lead to diet “failure”. Most diets advocate caloric restriction, which often leaves you hungry and that only makes you think about food more. You then have to rely on willpower to push through. This works – for some time. Eventually, you run out of willpower. Volumetrics Eating does the opposite: You can eat all you want, as long as you’re eating the right foods and in the right portions, so you don’t go hungry.
The effects are backed by science; in a 2007 study, dieters who ate low-fat and low caloric density foods that emphasised fruits and vegetables lost more weight than those who just focused on low-fat eating. Other studies have found that low calorie density eating plan leads to substantial weight loss and helps prevent long-term weight gain and obesity.
What’s The Downside?
Some have pointed out the lack of nuts and seeds in the plan due to their high caloric density, yet these are powerhouses of monounsaturated fats and omega-3 fatty acids that contribute to healthy hearts and brains. You also need to be prepared to prepare your own meals; your dine out and takeaway options will be limited as most food providers use high-calorie oils and butters in their cooking.
So who should go on the Volumetrics Eating plan? If you’re not a fan of hardcore or trendy diets, have tried them all but to no avail, or find that restrictive eating doesn’t suit you, this may be worth a try (consult your physician before you start). You won’t experience rapid weight loss but can expect an average of two pounds per week, which is the rate that experts recommend as safe and healthy.
A Non-Diet(ish) Approach For Weight-Loss
What Is the Volumetrics Diet- And Can It Help You Lose Weight?
Dietary Energy Density In The Treatment of Obesity
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