Hi, my son-3, be 4 in augst, he doesnt want to eat, he gets an appetite tonic and a shake. but he still weighs 14kg. im concerned as hes very small?

Interesting post: At 14 kg a 3.5 yo is well within the normal range of boys that age (13-18kg) but a single point in time does not provide enough data to suggest or exclude a problem. A growth pattern including both length and weight over a 2-3 year period gives a better picture. A review of such data with you doc would better indicate a need for concern or not.