Limiting intake to 500 calories every other day caused weight loss of 5-6% in 2-3 months

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Wednesday, October 26, 2016 11:00 am Email this article

Having people limit their calorie intake to 500 calories every other day, which is 25% of their calorie needs, and allowing them to eat as much as they wanted to on the other days, causes an average weight loss of 5-6% of body weight in obese people (BMI 30-39) in 2-3 months according to three studies done by Krista Varady, PhD from the University of Illinois in Chicago, Illinois, USA.

Krista Varady, PhD has noted that their research has found that eating 25% of calories every other day (roughly 500 calories every other day) works BETTER than eating 0% of calories—eating NO calories on the “fasting” day—and better than eating 50% or 75% of calories every other day.

They have found that compliance with this type of diet—limiting intake to 500 calories per day (25% of your calorie needs)—is MUCH higher than when people are told to eat NO calories on the “fasting” day.

They have also found that eating 500 calories every other day causes most of the weight loss to be fat, and preserves muscle.

Modified Fast

Every Other Day Modified Fast

This is called an “every other day modified fast”.

This article was first published on Sept 23, 2015.

Reference

Varady KA, Bhutani S, Klempel MC, Kroeger CM, Trepanowski JF, Haus JM, Hoddy KK, and Calvo Y. Alternate day fasting for weight loss in normal weight and overweight subjects: a randomized controlled trial. Nutr J, 2013; 12(1): 146.

The paper is posted here and here.

Author’s Contact Info

Krista A Varady, PhD
Department of Kinesiology and Nutrition
University of Illinois at Chicago
1919 West Taylor Street, Room 506 F
Chicago, IL 60612, USA
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Articles on the same subject can be found here:

• Every Other Day Modified Fast

• Fasting, Intermittent