My dd's K class asked for $20 from each student for the school year and then the teacher would purchase the snacks to get away from the junkie type of snacks that often are donated. I thought it was a great idea.
I quiz my dd each day on what she had for snack. They get graham crackers, cereal (Trix, Lucky Charms, Frosted Cheerios), pretzels, a wide variety of crackers, popcorn, tortilla chips, cookies (presumably packaged store bought,) and then they get candy & other treats for holidays and special events as well as birthday treats brought in by the parents which is about 2 or 3 times a month. On the surface, this is probably much better than what it could be, but I dislike a lot of the food dyes, preservatives and sugar content in a lot of those snacks. Not once has fresh fruit or veggies been offered. I think my idea of a healthy is much different than the teacher's. The nice bus driver also hands out suckers on a regular basis.