y baby diagnosed with biliary atresia at the age of three months had kasai surgery but their is not such changes in her poop color. she is going to be 8 months old but her weight is just 6.3 kg. she's formula feed baby her dietitian suggests simyl formula but I don't think so she's gaining weight that much. cause of lack observation of fat should I give her extra fat like (Ghee,oil) I also used to give her MCT oil. please suggest me what should I give her for weight gaining and which formula is best for her.