Low weight and height. Evaluate further.

Namste !! My daughter is 4 yrs and 4 months old, her weight is 12kg and height is approx 94cm. She is studying in LKG. My concern is about her growth as she looks very small when compared to her age group child. Although she is active and talkative as well. In study also she is good but her weight is stuck to 12 since last almost one year. We went to the doctor and they said she is normal. She had some tests like Hb,Iron, Ferritin and vit d and all were absolutely normal including Hb - 14.2%. related to diet she ate almost everything including Rice, Chapati, Vegitables , almonds. But still her weight and height is not growing much. Her birth weight was 2.77 kg and she is a full term baby. Kindly suggest the best diet do we need to add anything extra apart from normal. Or need to evaluate further. Thank you 🙏 Regards