That's actually pretty unhealthy. Try an apple or something instead.
Ugh. I have something against skim milk. Nature made whole milk. Man made skim milk. If you want to eat healthy, go with what out ancestors ate(and drank) and what nature gave us not that stuff that was created to attract the attention of dieters and claim to be the epic answer to weight loss.
Whole milk fills you up because unlike skim, the majority of it is not water. Therefore, you eat less when drinking whole milk. Plus, it actually has taste to it. Now that is natural and wholesome...and healthy.
Just a thought.