Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Provide an example of a healthy snack that is 500 calories or under.

### Response:
One example of a healthy snack that is 500 calories or under is an apple with 1 oz of nut butter and one slice of whole wheat toast. The snack would provide fiber and healthy fats, and still come in at around 400 to 450 calories.