It is a bit over weight, but you have to remember that she is a teenager and her weight will flucuate, and she will start, or already may have, some negative thoughts about her body. I know I did. Whe I was 12 (5'1") I weighed 175 pounds so I decided to take matters into my own hands. I am now 150 pounds (5'2") but I have a very negative body image, and I also have the genetics in my family to be overweight which really didn't help, cause I had nobody to compare myself to to get skinny. I am still fighting my weight and negative body image. The most important thing you can do for you daughter is to help her see that she is beautiful, and fully back her if SHE wants to change. You need to be the role model. I know I would have probably never gotten to 175 pounds if my family was active and into sports. Go walking together, cook healthy meals together. Just be together and she will tell YOU what SHE wants to do about HER body.