Substitute healthy snacks for junk food
If you're a three-meal-per-day guy, chances are that your energy levels take a dive between meals. By refueling with healthy snack foods, instead of traditional junk food, you'll keep your energy levels high without sacrificing your health. Traditional junk foods tend to be high in sugars and fat. When consumed, these foods will give an immediate boost of energy, followed by a big energy drop. Eating healthy snacks, on the other hand, can help to ensure that your energy stays level throughout the day.
instead of（用…）代替…， （是…）而不是…， （用…）而不用…；
Instead of complaining about what's wrong, be grateful for what's right.
Instead of moving at his usual stately pace, he was almost running.
Small pickling onions can be used instead of sliced ones.