The Fat Loss 4 Idiots diet uses an idea called “calorie shifting”, where you continue to eat a normal amount of food every day, but spread it out over 4-6 small meals instead of the standard 3. You eat until you are satisfied, not until you are stuffed. This is supposed to trigger the release of fat burning hormones, stripping away a small reasonable amount of fat daily.
This is different than the traditional low-fat approach (eat as little FAT as you can), the low-calorie approach (eat as little FOOD as you can), and the low-carb approach (eat as little CARBS as you can).
The website correctly points out why the traditional approaches don’t work. Low-fat often fails because when people believe they are eating the “low fat” version of a food, they end up eating more of it. Low-calorie fails because eating less forces your metabolism to slow down. A slower metabolism means your body is burning less energy, and therefore less fat. Low-carb diets fails because they are very restrictive, increase cravings, and are very hard for most people to follow for more than a short while.
The Fat Loss 4 Idiots approach is to keep you eating a normal, healthy amount of calories (so your metabolism doesn’t slow down) and a normal, healthy amount of fat and carbs (so you don’t feel hungry and have to deal with urges to cheat and “pig out”).
The basic approach is to eat specific, normal, nutritious foods (all available at your local grocery store) spread out over 4-6 meals across the day. The diet runs for 11 days, followed by a rest period, followed by another 11 day cycle if you need or want.
Another basic idea in the program is that whatever shift you make in your diet, over time your body will adjust to it, and the new diet can quickly stop having an effect . To deal with this, the Fat Loss 4 Idiots diet “switches gears” several times, changing the foods and the schedule. As well, after 11 days, you get a break where you are allowed to return to your normal way of eating. These built in “cheating” days and changing the patterns of eating are supposed to keep your body guessing. The idea is that if your body doesn’t get a chance to adjust to the new diet quickly, it will keep shedding fat daily.