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The Positrim Diet

author image Walt Pickut
Walt Pickut has published peer-reviewed medical research since 1971. Pickut teaches presentational speaking and holds board registries in respiratory care and sleep technology. He is a member of the Society of Professional Journalists and the American Society of Business Publication Editors and is editor for "The Jamestown Gazette." Pickut holds bachelor's degrees in biology and communication, and master's degrees in physiology and mass communication.
The Positrim Diet
You can replace a meal with a nutritionally balanced Positrim milk shake. Photo Credit Hill Street Studios/Blend Images/Getty Images

A new diet is an opportunity to replace your old way of eating with a better way. Positrim is the brand name for ready-to-eat meal replacements in the form of nutritionally balanced milk shakes and bars marketed by Amway. Meal replacements can be effective when used properly. A study in the June 2012 "Nutrition Journal" reports that meal replacement shapes help with the intake of micronutrients during low-calorie diets, and therefore are beneficial. Substitute a meal drink or bar for breakfast and lunch, then eat a healthy supper of your own choosing that provides 600 to 700 calories.

Meal Replacements

You can lose weight and body fat with a meal replacement plan like the Positrim diet, according to medical researchers reporting a controlled, double-blind study in the February 2009 edition of the "International Journal of Clinical Practice." They studied two popular, low-calorie meal replacements, one based on a nutritionally balanced composition and the other based on a high-protein formula. The researchers documented an average 12-pound weight loss, with similar body fat losses, over 12 weeks on both plans for subjects who maintained 70 percent or better compliance, with a slightly better result for high protein style diets. Positrim drink mixes are the balanced nutrition variety such as those in the study.

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Positrim Shakes

Your lifestyle may leave little time to prepare nutritionally balanced meals, tempting you to grab "fast food." Positrim Drink Mixes are designed as calorie-controlled meals with a ratio of carbohydrates, fats and high-quality proteins to duplicate the nutrient formula of an adult’s well-balanced meal. They provide 24 vitamins and minerals, 50 percent above recommended dietary intake for 15 of them, a balanced ratio of 1 gram protein containing 18 amino acids to 2 grams carbohydrates and 6 grams dietary fiber in a 172-calorie meal.

Positrim Bars

A single Positrim meal replacement bar provides 250 calories, 9 grams of fat, 4 grams of carbohydrates and 22 grams of high-quality, amino acid - rich protein. This formula is consistent with the nutritional components of the high protein variety of diet described in the "International Journal of Clinical Practice" research reports.

Re-Educating Yourself

Keeping your weight where you want it after losing the excess is a key challenge. A March 2010 research report published in the "Nutrition Journal" studied maintenance after weight loss. A 40-week clinical trial with 90 obese adults evaluated meal replacements similar to Positrim as compared to traditional diets. After completion, they followed a 24-week maintenance program of dietary re-education and lifestyle management. Results documented that meal replacements fostered robust weight loss, effective re-education and maintenance as effectively as a traditional diet. Other health-related parameters, including oxidative stress and inflammation, which underlie common chronic diseases, were also well controlled by meal replacements like the Positrim diet.


Crash dieting may seem a tempting option when the holidays or a special occasion approaches. But that is an unwise option, according to MedlinePlus.com. You should lose no more than 1 to 2 pounds per week. Faster weight loss mimics severe starvation and may degrade your muscles and nerves. Nutritional meal replacements are better than a zero-calorie crash.

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