A Scientific Study was recently published concluding that an alternate-day fasting diet was NOT superior to a daily calorie restriction diet for Metabolically Healthy Obese Adults with regard to adherence, weight loss, weight maintenance, or improvement in risk indicators for cardiovascular disease (including insulin resistance).

The lead researcher in this study, Dr. Krista Varady, has previously done extensive research on Alternate Day Fasting.  Those studies are currently considered the best scientific authority on Intermittent Fasting, and her previous research findings have often been extensively quoted by the majority of Intermittent Fasting Gurus, including Dr. Jason Fung, author of The Obesity Code (2016) and The Complete Guide to Fasting (2016)

Below is a recent article from TIME. 
 

Fasting Isn’t Better for You Than Regular Dieting
Alexandra Sifferlin   May 01, 2017    TIME

Losing weight is hard, which is why weight loss experts have long searched for different approaches to make it easier for people. One strategy gaining steam is intermittent fasting, where people fast or lower their calories substantially for a short period of time. (This diet plan also has potential lifespan-extending benefits.)

But new research published in JAMA Internal Medicine suggests that the fasting diet may not be the weight loss key it's been hyped up to be.

In the new trial, researchers wanted to know whether people who tried a fasting diet would be more successful than those on a standard diet. They told 100 people with obesity to follow one of three diets for a year. Some were told to cut their calorie consumption by 25% per day—a typical calorie restriction diet—while others did an alternate-day fasting diet, where they ate about 500 calories on “fast” days and whatever they wanted on “feast" days. The last group, which served as the control group, ate what they normally would.

The researchers expected that the people in the fasting group would lose more weight and have an easier time sticking to the diet than regular dieters, but the results didn't reflect that. At the end of the year, people who did the fasting diet and those who just cut calories both lost an average of 13 pounds. However, people in the fasting group actually had a harder time sticking to the diet, and more people in that group dropped out of the study.

“I really thought people would have an easier time and lose more weight on the [intermittent fasting diet] and I was shocked they lost the same amount,” says study author Dr. Krista Varady, an associate professor of nutrition the University of Illinois at Chicago and author of the book The Every-Other-Day Diet. “Th...