I wouldn't worry about it too much. It sounds like she's eating well, nutritionally speaking. I assume she is active and that you make food and snacks available to her throughout the day. My daughter is 6 and weighs 37 lbs. This is around 10th percentile and she has been on that 10th percentile curve since she was about 10 months old. She was 8 lbs 11 oz at birth - no small baby. She's always been very active and she's such a slow eater. The amount of food she's eaten since about 15 months has always concerned me a little. I've worried about her weight off and on over time, but once she was active (walking, running, etc) she stayed consistently on the same growth curve. Now it's still frustrating to get her to eat, but it's also a pain to buy her clothes! She can wear a 6x in pants for length, but the waist is gaping big on her. The adjustable waists are taken in to the 6th button hole on each side and the material is bunched up. Or I've had to sew tucks in them or use giant diaper safety pins. She can fit in the same size shorts and skirts as her 22 month old sister....18-24 months!! In general she has a healthy appetite. I have asked her doctor countless times about whether or not I should give her supplemental drinks, and he's always said no - because she needs to get her calories and nutrition from good food and not liquid substitutes. He believes that starting a habit like that would turn her off from eating good, whole foods - especially because they're made to taste like shakes and contain a high amount of sugar. Your daughter, like mine, will probably end up being a thin girl forever who never thinks twice about weight. Consider her metabolically blessed :) This may be good genes, good habits, or just luck, but the situation could be the opposite. You could have one of the countless overweight and obese children out there who will have health problems most of their lives. It's sad, but true. I offer my daughter a lot of higher calorie snacks like yogurt, cheese, granola, etc. Now she's in kindergarten full days and it's hard to know what she's having for morning & afternoon snacks, and they only get 15 minutes for lunch so I know she can't eat much in that time. When she was around 2 1/2, my pediatrician said I should offer her snacks or meals at least every 1 1/2 to 2 hours because at that age, they often can't explain their feelings of hunger (or thirst) but sometimes it comes through as behavior issues or lack of energy due to drops in blood sugar levels. Honestly, though, I wouldn't worry about it as long as she generally acts healthy, has plenty of energy, and sleeps pretty well. It sounds like you're feeding her very well, and your concern just shows you're paying attention to the details because you love her, of course!