It's common knowledge that the more delicious a snack is, the more terrible it is for you. Case in point: junk food. We all know it's bad news. Heck, the name itself implies that there's unnecessary stuff hanging around. And in this case, that unnecessary stuff is extra fat, sugar, salt and calories.

So, even though I start my day with a hearty bowl of oatmeal, guzzle water throughout the day and get my five servings of fruit and veggies in, I'm no match against a chewy chocolate chip cookie that's waiting for me in the break room. It's fast, convenient, and how much can just one little cookie hurt, right? Unfortunately, the answer is "a lot" if this same rationalization is happening every day of the week, for whatever your weakness may be -- potato chips, Cheetos, a generous slice of cheesecake ... pick your poison.

As tragic as it may sound, I'm afraid it's time to loosen that kung-fu grip on your favorite junk food.

Take a deep breath. This doesn't mean you have to completely deprive yourself of sweet, salty, crunchy goodness and chomp on celery 24/7. It's merely time to give your diet saboteurs a little makeover.

To help you get started, we rounded up healthier snacks that can easily be swapped for the junk food you can't quite seem to kick. By all means, feel free to indulge in a Snicker's bar once in a while -- but in the meantime, reach for these smart swaps to keep your junk food cravings in check.