Skip to main content

See also:

Shred Diet melts 20 pounds in four weeks: Study supports fast weight loss

Get your best bikini body with the Shred Diet.
Get your best bikini body with the Shred Diet.
Photo by Stacy Revere/Getty Images

Ready to fight flabby fat? By becoming a member of what Dr. Ian Smith has dubbed Shredder Nation, you can lose up to 20 pounds in four weeks. Dr. Ian explained how the diet works on Rachael Ray's Thursday talk show.

Dr. Smith is author of "Shred: The Revolutionary Diet: 6 Weeks 4 Inches 2 Sizes," and emphasizes that the plan is designed to boost your metabolism with carefully calibrated cycles. The different phases are designed to provide variety while taking off pounds quickly.

The phases include Foundation, with four meals and three snacks; Accelerate, to supercharge weight loss; Shape, to provide "calorie confusion" and Tenacious, the final phase for reaching goal. For those who want to take off the weight faster, Dr. Ian recommends his supercharged "Super Shred: The Big Results Diet: 4 Weeks 20 Pounds Lose It Faster."

However, some have questioned whether a diet designed to provide rapid weight loss is safe and sensible? Prevailing wisdom is that slow, steady weight loss is safest and, once dieters have achieved their goal weight, most effective.

That "wisdom," however, is a myth, according to a new study in the journal Critical Reviews in Food Science and Nutrition. Losing weight quickly actually works better, reported "Good Morning America" on Thursday.

Krista Casazza, assistant professor at the University of Alabama and author of the report, discovered that weight loss success in the "real world" contradicts what most diet experts advise. Losing weight faster makes it more likely that dieters will keep off the weight.

And if you've ever delayed a diet because you weren't "ready" to start, just do it, says Casazza. The famous "I'll start the diet on Monday" mantra doesn't equate to success.

As for the "Super Shred" diet's emphasis on how many pounds you lose? That theory that you shouldn't weigh yourself all the time also is a myth, according to the professor's research. Casazza’s study revealed that dieters who step on the scale daily actually increase their odds of weight loss.

In addition, Dr. Ian puts the focus on losing large amounts of weight, which contradicts what many weight loss gurus urge. But he's right, according to this new report.

And the University of Alabama professor urges dieters to think big. "Striving for something unreasonable like losing hundreds of pounds often drives you to engage in ambitious, out-of-the-box thinking," she declared.