Carrots in factory-sealed snack packs make for fresh and healthy Halloween treats. A 2-ounce portion of carrots provides 8 percent of the fiber and 220 percent of the recommended daily serving of vitamin A. You may have heard that carrots improve eyesight -- it's true, and you can thank vitamin A for that and more. This vitamin supports healthy mucous membranes, which trap pathogens and, in turn, prevent viruses and diseases.
The calorie count in raw carrots and celery is so low that some nutrition and fitness experts don't count them toward your daily intake. But watch out for the dip that accompanies prepackaged veggie snacks: A 2-ounce portion of ranch dressing contains 8 percent of the fat and 9 percent of the sodium in a 2,000-calorie diet.