I agree I would not comment on something this sensitive to the parent unless it is impacting her development in your program ... aka the child is demanding 'excessive amounts of food' in the program and does not seem to be able to 'gauge' when she has had what Canada's Food Guide considers an average serving size for her age group or she is so obese she is incapable of doing physical activity, getting out of breath or something and therefore 'struggling' in the program - I would feel compelled to double check and just say 'I am noticing that during outside play X becomes easily winded and struggles to keep up with the others her age - just wondering if you have observed this at home?' or "At meals and snack times I am noticing that X will easily eat 3-4 servings more than the other children and want to make sure I am being consistent between expectations at home and in program - do you keep her portion sizes at meals reflective of Canada's Food Guide for her age group or do you follow the belief that children should just eat until they feel they decide they are full even if that occasionally means they eat 4 hamburgers ... so you are approaching the subject in a round about way without saying 'hey I think your kid is obese cause she is over eating'???

BTW that hamburger comment is because I worked with a family whose 4 yer old child was obese .... weighed over 85 pounds and 3 feet tall and they did not think anything wrong with allowing the child to eat 4 full adult size hamburgers in a sitting and chasing that down with a litre of chocolate milk and some fries too boot at home ... cause he is a growing boy and knows when he is full .... seriously that child's stomach must have been stretched to the size of a duffel bag and he was NEVER full .... he would have eaten more we honestly had to cut him off at meal times and make him WAIT for others to have seconds before giving him seconds or he would eat it ALL before the other children had finished their first serving!

I personally allow my crew to 'self guage' their fullness here .... today my 6 year old had four bowls of taco salad however I do limit 'sweets' to in moderation .... aka you can eat meat, fruits, vegetables until your hearts content .... but high count carbs that break down in the body into high glucose sugars you get ONE Canada Food Guide's serving at a sitting .... pasta, rice, potato, breads, muffins, arrowroot or graham cracker cookies and so forth all one serving only!