Can I lose 5 pounds in a week by eating 500 calories a day?

Hi I'm a 15 year old girl, I'm 5'3/160cm and I weigh 100 pounds. Do you think I could lose 5 pounds in a week for a date?
Updates:
3 mo
Or lose more? I want to be 90 pounds eventually
- Have you verified your body mass index (B. M. I.)?
www.nhs.uk/.../
This tool from N. H. S. takes into account more than just height & weight.
Granted, B. M. I. was devised by an insurance-statistician (NOT a medical professional), so it does not really measure health, but health-risks. It also does not differentiate between fat & anything else (water, muscles, etc.). But it still does seem to be effective within reason.
Using what little information you've given, you seem to already have healthy weight, but bordering on underweight. (Please, verify by trying with the more complete data you do know about yourself that we don't.)
Just to be sure, what would make you think you need to lose weight? (If you decide to upload a picture, showing your face might not be safest, given online face-recognition tools.)
Most Helpful Girls
- Don’t starve yourself. Eat healthy and get enough protein and work out. Starving yourself will make you saggy like this and we don’t want that.
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