In fact, within that time period you could easily destroy all your hard work in the gym with a few dietary slip-ups. Ask any trainer, nutritionist or professional athlete about this and if they’re honest enough, they will admit that maintaining an adequate diet is the key to getting the body of your dreams.

Most guys already know this but they have a hard time putting it into practice because as soon as they walk out of the gym after a ridiculously grueling session, they feel entitled to eat whatever they want (read: a huge greasy burger) because they’ve worked their ass off. In addition, some of them seriously believe that a decent amount of exercise can wipe off the evils of poor food choices.

Newsflash: if your diet is all over the place, so will your gains be. Or perhaps you know someone who’s gotten insanely ripped by slamming down pizzas and French fries every day?

To prove our point, we’ve decided to present you with a challenge: imagine that you’ve got only 21 days to get super-lean. How would you plan your meals in order to shed as much fat as possible in that short period of time? If you’re not sure about that, check out our simple 21-day low-carb dieting program bellow.

If you follow it as strictly as you can, we can guarantee you that you’ll be proudly showing off those massive muscles in less than a month. You have nothing to lose, so give it a try right now. No more time for fooling around – get ready to start melting your fat away and maximize your mass gains!

The post-workout meal is the only time when you’re allowed to eat a big portion of clean, fast-digesting carbs. Keep in mind that this applies ONLY for the meals following your lifting workouts, not cardio sessions. Also, we’re not talking about stuffing yourself with ice cream – think fruits, potatoes, sweet potatoes, oats and white rice.

The body can be forced to rely more on fats for fuel and this is completely safe, health-promoting if done the right way and for adequate periods of time. Not to mention, it will stimulate far greater fat-burning.

Naturally, all those carbs you won’t be consuming have to be replaced with something, and that something will be plenty of protein and a decent amount of dietary fat. If you work out frequently, go crazy with the (clean and lean!) protein but don’t feel free to eat as much as high-fat foods as you want because they’re really calorie-dense and you still need to maintain a slight caloric deficit. Include any kind of lean meat or oily fish into every major meal in the day and increase consumption of healthy cooking oils. Boost protein intake even further with protein shakes.

And let’s not forget about dietary fiber, which is a tremendously important part of a healthy, waist-slimming diet. To increase your intake of fiber, enrich your meat-based meals with beans and green leafy vegetables, which are brimming with fiber and important vitamins and minerals. Snack on nuts for an extra dose of fiber as well as protein.

Drink as much water as you can, which means drink it even when you don’t feel like it. This will help you get read of that bloated look and boost your metabolism. Also, water is essential for proper digestion and nutrient absorption, especially when it comes to protein.

Here’s a sample diet plan to give you a picture of what your meals should look like.