Feelings over hunger may also become more tolerable over time. Studies of alternate-day fasting have shown that people rate their hunger at 8 on a scale of 1 to 10 for their first few fast days, but after two weeks, that number drops to 3. Mattson puts the window at three to four weeks, after which, he says, "you're not hungry on fasting days." (Try clean eating to shed stubborn pounds. This plan gives you 150 delicious recipes you'll love!)
According to a new study in the European Journal of Nutrition, both black and green tea are active in aiding weight loss. The University of California researchers found that decaffeinated green and black tea have a positive impact on decreasing the bacteria in our gut, which is closely tied to obesity. These teas target the good bacteria in our bodies that create lean body mass—aka they're serious fat burners.
And that's not all, says Courtney Peterson, Ph.D., an assistant professor in the department of nutrition sciences at the University of Alabama at Birmingham. "Studies suggest you keep more muscle and lose more fat than on other diets, even if you lose the same number of pounds." That's because after about 12 hours of fasting, you run out of stored energy from carbs and start burning stored fat.
The SHRED Power Cleanse If you have two weeks to commit, this program by Dr. Ian a great one to consider. Why? Because it's filled with whole, nutritious, fiber-rich foods, a common sense approach to eating and an exercise program that is based on smart science. It is not designed to be a weight loss program, but you're likely to lose weight while you're on it. And during the program, you learn healthy lifestyle habits (like planning ahead and journaling) that you can use for long-term weight loss and weight maintenance.