Weight Gain

my 6 months old daughter is 30+3 week preterm.her birth weight was 900g and on 0ct 5 she was 3.9 kg and now 4.9 .. i want to ask that is the weight gain is proper and can i start her solid diet . one more question is dat here bones cracks some time is it dangerous? i am giving her vit d drops

dr-danish-aftab-pediatrician-karachi

Get her
vitamin D levels,
phosphorus,
alk phos
and cbc
.
So that supplements can be given with proper dosage.
Giving just vitamin d drops is not sufficient to correct vitamin d deficiency.
U can start solid diets with rice cerelac or wheat cerelac