For the past two check ups, 15 and 18 months, my child's pediatrician has been concerned with my daughters slowed weight gain., or failure to gain weight as she called it. the past two visits she has been on the <3% weight, but she jumped in height from 16 to 21 % for height.

At the previous visit, the pediatrician recommend I supplement milk with pediasure. I did not, as I did not like it's contents. My daughter eats very healthy and I did not want to undo her healthy eating habits. However, I did find three supplements we use: Ella's kitchen nutrition shake, happy tots nutrition shake, and ograin nutrition shake. All are between 180-200 calories, I believe.

After telling the pediatrician what my daughter ate the past two days, she was in shock and disbelief that 1. My daughter eats so well and 2. That with the addition of the shake she has not put on more than 6 oz since her last visit.

Both her father and I were always thin as children and didn't put on any weight (even then still not a lot of it) until college when you order pizza at 1 am and drink a lot of beer. Anywho so I explained that to the Dr and asked if it's genetics. She said maybe but she should still be putting on more weight.

The pediatrician then prescribed blood work be conducted. I looked at the possible tests and she shows absolutely no symptoms of anything. Poop is once daily and formed, has never had diarrhea, never appears to be in any pain, she has never vomited, shows no allergy symptoms, etc etc.

We will be getting the blood checked to be on the safe side.
Has anyone dealt with "failure to gain weight" as the Dr. calls it? If so, how have you dealt with it? What are some reasons? I'm now a concerned mommy and wasn't prior to her visit.

Side note, on the positive side the Dr. Called her a smarty pants and a very happy baby. So I guess if we fail at something at least it's weight? Just trying to see the silver lining.