How can a teenage female lose 10 pounds in one week?:confused:

High metabolism and active
Health problem
Scale off

Maybe she should see the dr.

You can't ; at least not safely and not in such a manner that it'll stay off. 1 to 2 pounds a week, tops. What's the hurry, anyhow? Do you actually need to lose this weight?

high metabolism and active
health problem
scale off

Maybe she should see the dr.I'm sorry, but this response brings up a point that I overlooked in your question. Are you trying to lose weight (as I presumed) or are you questioning why you lost the weight (as this poster has presumed)?