Friend's weight loss

I know somebody who lose weight a lot. Everyone are actually looking up to her and applauded of how awesome job she did. Not to mention, few months ago she was at size probably 12 and few months after she went down to almost size 3. We really don't exactly know what she have done to herself since there is no answers reveled in her part on how she succeeded. Some says, she took weight loss diet pills but others speculations are humorous and concluded that she starved herself to death. For whatever way she did, i really applaud her for doing such a great job that I, myself can't really do it. She just have a strong determinations and her courage to lose weight is just so consistent. Everything she does was paid off, i'm happy for her.