Repinned with another pinner's description of "0 calorie foods" - please note: Something to look in to when watching calories. Not all are zero calories but are lower in calories than other snack options. Enjoy
Don't necessarily agree with the first "do". You should eat as little or as often as your body needs, and everyone is different. A high intensity/endurance athlete obviously needs to eat more and more often than someone who works out maybe only once/week.