My son's nail are decaying.what could be the reason..it became very thin he is 6.5 years old

A. Hi mom This can be due to Calcium deficiency. Give calcium rich food like milk paneer curd cheese. Almonds, spinach, walnuts, beans, ragi, sweet potato etc are high in calcium. Consult ur paediatrician as he will prescribe supplements after the proper evaluation of the baby.