If weight is big, thus visit endocrinologist.

 A grandson for my sister n 3.5 y.old is a weight big on two time , than  a wrong in his age. He was born a small, appetite good, and faster grown up, learned kept spoon.But  eating very good, enjoying macarons, fried potato, pelemenis, sausages, pancakes, pies as eat for adult. And parents are happy, that a few children seating bad, but his is not.And we are worried  with my sister, does it true lead to bad metabolism and obesity, or sugar raise. Or we are wrong worry  ,that he is growing, and appetite changing.

Yes, you are worried right, that ration for any person as and children is need to be balanced, for proteins, fats and carbohydrates entering to a matching age proportions answers Doctor Korsakova. Your children are  growing and developing, and appetite is good. And ration bad for a selecting just fast food is prejudice for other, that is happening when a children transfer very early on an adult meal, causing weight changing and for damaging organs and fats on the body. And obesity in children needing visiting for endocrinologist,f or a  finding these weight problems and not matching for normative weight. And doctor with speech with a children and parents, prescribe blood test, urine, ultrasound, and by which of selecting remedies for data problems.   And  advice with parents checking right ration.