Eat nuts for a snack instead of crackers. Even though nuts are higher in fat content, eating only a small amount can satisfy your hunger for a longer period of time. Crackers are mainly carbohydrates. You will need to eat more of that to satisfy your hunger over the same period of time, leading to eating more calories. So, in the long run, nuts are better snacks.
If you are concerned about healthy nutrition, you will want to look into the growing movement for locally grown food. By buying produce from local small farms you get a fresher product. It hasn't been shipped across country in refrigerated cars! If organically grown, it won't be laden with pesticides. charlotterehab.org/