my daughter is 4.8 yeras old.. she eats properly like daily dal rice sabji roti khichadi etc.. fully active and talkative.. but she looks smallest in class. she is very tiny. her ideal weight should be more than 13 but she is just 13 kg. and her hight should be more then 99 cm but she is just 98. she is been always like this. when she was 2 years old I asked pediatric about it but he said if baby is active and happy don't worry about this. me and my husband are average means not very short and bot very tall..