When my daughter was born she was 2.2 kg .

And when she was 4 month she was almost 5 kg. And dr told me that I should start give her food because she is underweight.

Now she is 6 month yesterday her weight was 6 kg and they told me that she is underweight and I should give her meat (beef ,chicken, fish) and egg what do you think ??? And how can I give her she can’t chew?!!!!