Were you one of the millions who no doubt resolved to do better by your body this year? The idea sounds promising, but by mid-January, many once ambitious dieters reach a discouraging slump. Things definitely won't get any better when that Valentines Day candy comes rolling around.

Here are four quick Hacks for preparing healthy meals, and staying motivated to do so.

Freeze premade smoothie packs

Smoothies are a great way to boost energy and nutrients, and the good news is you can make them within minutes using this hack. Compile all your favorite smoothie ingredients into individual plastic bags, and freeze for up to six months ahead of time.

Then, when that smoothie craving sets in, blast those ingredients up into a tasty smoothie, without the hassle of searching for ingredients and measuring them out.

Preroast meat and vegetables

This hack works the same way as the previous one. By prepping ahead of time, you can present yourself with more healthy meal options when you need them. Simply chop up whatever vegetables or meat you have on hand, and roast them on a cookie sheet with a few splashes of olive oil. Doing this once a week will ensure you have nutritious options in your fridge all week long.

Make your own croutons

Anything that makes a salad more desirable is a win in our book. And once you make your first batch of homemade croutons, you'll never go back.

Simply chop a baguette into crouton-sized squares and toss them in a 9-by-13 dish along with some olive oil, salt, and pepper. Bake for 15 minutes at 400'F, stirring occasionally. These croutons are so much healthier than the processed ones at the store, and they'll have you looking for an excuse to eat a salad.

Buy a bento box

Have you heard of this internet fad yet? Bento boxes originated from a Japanese idea, but they're really just pretty, well-organized lunch containers sure to get you into the habit of taking homemade lunches to work daily. These lidded containers have dividers for sectioned-off snacks and desserts, and the best part about them is that your lunch can become instantly #igworthy if you pack it with a wide array of colorful ingredients.

Since colorful ingredients usually equal nutritious ingredients (besides skittles and m&m's), you'll be on the right track to healthier lunches every day at the office. And you won't have the urge to eat out, either.

Follow these hacks, and give a good boost to your January diet. Good luck!