My daughter is underweight too I would assume, her doctor never specifically said so but her weight is below the chart and her height is between 30% and 50%. For a while the doctor was having me feed her extra high-fat foods like avacados maybe yogurt, adding butter to things, stuff like that. Unfortunately I can't remember anything more specific. She ate really well, she loved to eat, and it never made any difference. She just had her 2 year old appointment and is at the same levels on the chart, she has been there since about 8 months old. Anyway her doctor decided it was genetic, she's staying on the same curve even if it's below the chart, so she (the doctor) doesn't say anything about it anymore, which I'm thankful for. So if it's genetic you may not be able to cause any extra weight gain, but if you want to try add extra fat to foods and feed (healthy) high fat foods as much as you can and see if it helps.
at 2:38 PM on Nov. 29, 2009