OP, you are right to be concerned, and the comments here minimizing your concern are baffling to me.

30lbs is an astonishing amount to put on over a few months, regardless of whether she is overweight now.

I wouldn’t do anything until you can get to the bottom of the cause.

Poor DD. This must be very hard for her.

Put her in a diet and make sharp, biting remarks about her weight. Shame her while eating. Also make sure she gets a deep tan because tan fat looks better.

Signed, my mother

That’s a lot of weight gain for a single summer if she isn’t also taller. Did her body composition change?

If keeping a healthy lifestyle and weight is something you work hard to help DD throughout the year and your ex cancelled it all out over the course of a single summer, I’d be furious, too. It’s absolutely worth addressing the subject with him to make sure you don’t have a repeat next summer. It would also be helpful to know exactly what happened.

Getting your daughter back to her regular routine and eating habits may be hard if she’s been a lump on an undisciplined log all summer. You might get some pushback. But it’s vital to get her back to a healthy routine. And until she evens out again, you might want to focus on finding fun, active activities for your free time. Go rock climbing together, sign up and train for a 5k, just a little something extra to jumpstart the process.

That sounds like binge eating and perhaps a counselor is warranted to hear how she was coping. Perhaps she did not to be there or she was stressed about something. I started binging as a freshman in college due to stress....

Anonymous wrote:OP, is that 28 pounds since the beginning of the summer, or since her last check-up a year ago?

Great question. Did OP answer? 30 pounds in 3 months means that her clothes wouldn't fit. Was her dad buying new clothes all summer?

She gained 28 pounds since her last visit in early May. She had strep and we went in and she was weighed. She left for her dads in mid-May. She was about 91 pounds on her visit May 3rd.

Anonymous wrote:It's hard to tell if we don't know how old she is, OP, but I wouldn't have described 90 pounds at 58.3 inches as "high percentile for weight" and "solid".

She’s 11 and will be 12 in the fall. She hasn’t started menstruating yet, but did start getting breastbuds about a year ago.

Anonymous wrote:OP, is that 28 pounds since the beginning of the summer, or since her last check-up a year ago?

Right, and is she now 128lbs and the same height? Is her body shape changing now too? Some of it could be eating crap, but some is most certainly puberty, or her body preparing for a growth spurt.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:It's hard to tell if we don't know how old she is, OP, but I wouldn't have described 90 pounds at 58.3 inches as "high percentile for weight" and "solid".

OP said the ped mentioned weight gain can happen before puberty, so she may be around 11/12. At 12, that height and weight would put her in the 57th percentile. It's not overweight, but it's heavier than average for her height.

How would 57th percentile for height and weight be "heavier than average for her height"?

Because "average" would be 50th percentile?

She would heavier than average for her age. She would taller than average for her age. She would not be heavier than average for her height.

I was doing a BMI calculation. To be completely precise, for her age, her weight is higher than average relative to her height.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:It's hard to tell if we don't know how old she is, OP, but I wouldn't have described 90 pounds at 58.3 inches as "high percentile for weight" and "solid".

OP said the ped mentioned weight gain can happen before puberty, so she may be around 11/12. At 12, that height and weight would put her in the 57th percentile. It's not overweight, but it's heavier than average for her height.

How would 57th percentile for height and weight be "heavier than average for her height"?

Because "average" would be 50th percentile?

She would heavier than average for her age. She would taller than average for her age. She would not be heavier than average for her height.

OP, do you know for certain that she ate junk in front of the TV all day? Because your pediatrician is right about some people gaining weight right before puberty. This is definitely a genetic thing in my family because me and both my siblings did after being relatively normal weight. And my grandmother told me my father did as well. None of us are overweight now...we all grew out of it.

Though my sister and I did not escape developing EDs in the interim thanks to our mom badgering us about our weight (they left my brother alone). Definitely continue to promote healthy diets and exercise...but don't project your feelings about your own weight on your DD. She might honestly grow out of it.

A 28 lb. weight gain in three months screams eating disorder (yes, overeating can be a disorder, too). I'd have her seen by a specialist. Losing weight is not just a matter of willpower.

Anonymous wrote:

Anonymous wrote:

Anonymous wrote:It's hard to tell if we don't know how old she is, OP, but I wouldn't have described 90 pounds at 58.3 inches as "high percentile for weight" and "solid".

OP said the ped mentioned weight gain can happen before puberty, so she may be around 11/12. At 12, that height and weight would put her in the 57th percentile. It's not overweight, but it's heavier than average for her height.

How would 57th percentile for height and weight be "heavier than average for her height"?

Because "average" would be 50th percentile?

Anonymous wrote:

Anonymous wrote:It's hard to tell if we don't know how old she is, OP, but I wouldn't have described 90 pounds at 58.3 inches as "high percentile for weight" and "solid".

OP said the ped mentioned weight gain can happen before puberty, so she may be around 11/12. At 12, that height and weight would put her in the 57th percentile. It's not overweight, but it's heavier than average for her height.

How would 57th percentile for height and weight be "heavier than average for her height"?

Anonymous wrote:It's hard to tell if we don't know how old she is, OP, but I wouldn't have described 90 pounds at 58.3 inches as "high percentile for weight" and "solid".

OP said the ped mentioned weight gain can happen before puberty, so she may be around 11/12. At 12, that height and weight would put her in the 57th percentile. It's not overweight, but it's heavier than average for her height.