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New Study Tests Portion-Controlled Entrees
A Nutrisystem Article
Reprinted with permission

Are They Effective For Weight Loss?

A new study just published in the March 2004 issue of Obesity Research compared two groups of women trying to lose weight. One group consumed a recommended number of servings from the federal Food Guide Pyramid each day, while a second group consumed a similar diet, but utilized two pre-packaged entrees daily. The results?

According to data published in the findings report entitled, Use of Portion-Controlled Entrees Enhances Weight Loss In Women, 

"Consumption of portion-controlled entrees resulted in greater losses of weight and fat, thereby reducing cardiovascular disease risk. Accurate portion control is an important factor in weight loss success, and use of packaged entrees is an effective method of achieving this."


Group A:

2 servings meat/alternatives
2 servings nonfat dairy
2 servings fruit
3 servings vegetables
6 servings grains
8 cups water 

Lost 4.2% of initial weight

Group B:

2 pre-packaged entrees
2 cups nonfat milk or yogurt
2 servings fruit
2 cups salad vegetables
3 servings grains
8 cups water 

Lost 6.5% of initial weight (1/3 more)

Greater loss of body fat mass
Greater decrease in total
Greater decrease in waist
Greater reduction in hip

Conclusion: Consumption of a diet using portion-controlled entrees enhances weight loss success.

The study, conducted by researchers at the University of Illinois and supported by a grant from Masterfoods USA, set out to determine the efficacy of a weight-loss diet using packaged, portion-controlled entrees compared with a self-selected diet based on the U.S. Department of Agriculture Food Guide Pyramid (FGP). For an 8-week study period, 53 women were recruited and randomized into two groups. Each was instructed to consume her group's respective diet plan (see sidebar on right), and both groups were given clear, straightforward instructions but no individual behavioral and diet counseling. All subjects came in once per week for a meeting with the research dietitians and to be measured.

In the end, both groups achieved significant weight losses over the 8 weeks of the study, but the group which utilized the portion-controlled entrees lost 6.5% of their initial weight—more than a third more than the group that didn't utilize prepackaged meals.

Researchers concluded that, 

"The U.S. Department of Agriculture FGP does offer reasonable guidelines on how much to consume from each of the various food groups. Choosing the lowest number of servings from each group provides a workable weight loss diet plan. However, a concerted effort is required to choose, prepare, measure and consume foods in the recommended portion sizes."

The scientists went on to say that, 

"Although both groups in this study attempted to follow a 1365-calorie diet plan based on serving sizes used in the FGP, those using packaged, portion-controlled entrees were more successful in achieving significant reductions in weight and body fat. For many people who want to lose weight, portion control may prove to be a key factor."

These findings, regarding the role of prepackaged foods and the importance of portion control, are not surprising. Study outcomes similar to these are becoming more and more prevalent as researchers tackle America's snowballing obesity epidemic, and one of its main culprits, the over consumption of food. 

As published last year in The Journal of the American Medical Association (JAMA), a study done by researchers at the University of North Carolina regarding average consumption since the 1970s, proved that portion sizes are indeed on the rise. Experts analyzed the food intake of more than 63,000 Americans during ongoing National Food Consumption Surveys and compared the average portion sizes of snacks, desserts, soft drinks, fast food, pizza and restaurant food. 

"When I came home at 6:00 at night, I didn't have to think about what I was going to eat or how much I was going to eat. It was all right there for me. I could just pull it off the shelf. It was a balanced meal. It was portion-controlled and it was something that I could prepare just in minutes."

– Carole, NutriSystem Success Story

At NutriSystem, we know how important portion size is. That's why we built our entire program around it!

Their findings? Throughout the past 20 years, portions have grown significantly in all environments. Between 1970 and 1996, here's how some average portion sizes grew: 

Salty snacks (chips, pretzels) --- Up 60%
Soft drinks --- Up 52%
Hamburgers --- Up 23%
French fries --- Up 16%

Additionally, among those 39-and-younger, pizza and salty snack food consumption had increased by more than 140%!

These ongoing studies may help to shed more light on the snowballing obesity epidemic overtaking our nation. As Jeff Prince, Vice President of the American Institute for Cancer Research said in a press conference coinciding with the Institute's International Research Conference on Food, Nutrition and Cancer last July, 

"In a country where 64% of us are overweight or obese, there is an alarming tendency to overlook the sheer amount of food we're eating. We have to regain our sense of appropriate portion size, so we can better gauge our intake."

With NutriSystem, you get Perfect Portions™ every time! 


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Nutrisystem Weight Loss Articles
~ Nutrisystem foods are now
    low Glycemic
~ A Study About Portioned
    Control Entrees
~ Mom loses weight and
    changes her life 
~ Join Nutrisystem for Free! 
~ Complete List of Delicious
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Before and After

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~ Symptoms to Expect on
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~ Review of the Grape Cure
    For Home Detox  
~ Time for a Rapid Detox  

Dieting Tips
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~ Dr. Siegrist's Talks About Her
    Popular Weight Loss Plan 
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~ Healthy Cooking: Use Soup
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~ Walking and Weight Loss! 
~ Where diets go wrong! 

Low Carb Dieting
~ What is a Low Carb Diet? 
~ How a Low Carbohydrate
    Diet Burns Fat 
~ Is a Low Carb Diet Healthy? 
~ Be Successful on a Diet
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Weight Loss Advice
From Tom Venuto
~ The Secret to Burning Fat
    Up To 300% Faster 
~ Your Body's Calorie Needs 
~ Fat Loss for Beginners 
~ Does Aerobics Make You
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~ Developing a Lean Stomach 
~ Did You Inherit Fat Genes? 

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Why do people experience incredible weight loss on a juice fast?

Before that question can be answered, we have to understand what ‘juice fasting’ is about.

Juice fasting is about abstaining from solid food, for a period of time, while supplying your body with the most nutritious drinks on this planet. By providing essential vitamins and minerals, the juice can actually jump-start the body’s fat-burning mechanisms. One glass of freshly-made fruit or vegetable juice provides you with the equivalent vitamins, minerals, enzymes, amino acids and chlorophyll you would get by eating several pounds of raw fruits and vegetables.

Most of us have heard how thousands are losing up to 10 pounds in 2 days on the best-selling Hollywood 48-Hour Miracle Diet in which you simply juice fast on bottled (dead) juice for 2 days. Well, juice fasting is a healthier version of the Hollywood Diet because you can fast longer than 2 days while supplying your body with live enzymes and nutrient-rich fresh fruit and vegetable juices.

Dr. Shelton, a great advocate of fasting, wrote "The weight lost by overweight patients in the early days of a fast is astounding. I have seen losses of five and six pounds a day for the first few days. A woman who fasted in the Health School in January and February of 1950 lost twenty-five pounds in the first two weeks.

Read the rest of the article here!


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