What do i do if my daughter have anemia and a bad diet? please, need some answers?

Anemia: First find out why anemic. If she doesnt have enough iron in her diet and that is the cause, she can take a supplemental iron pill as prescribed by her doctor. But first and foremost, find out WHY she is anemic. It might involve a good history of her diet and what she is eating or there may be another cause. Have her doctor investigate this.