Eat boiled eggs for breakfast with unbuttered toast. Cheese crackers for lunch with a salad, Big salad for dinner with some at least 4 ounces of meat in it. Shes slim really for being 6 ft.
Well im trying to loose weight myself and its starting to work, im doing an hour exercises everyday, Steps- 1020, Boxing at least 500 punches (my dad used to be a blackbelt) skipping - at least 100 a day and sit ups 15but if she wants to loose the weight fast the best exercise is sit ups and my mother says 30 a day should help loose the weight pretty fast.
A six foot 11 year old? Wow. On the off chance that you re not trolling, 127 is already under weight for someone that tall.
get her active in sports,dance and martial arts...make sure she stays on a balanced diet her entire life...focus only on safe fat loss,nothing else!