The vast majority of children with nail stratification are not the result of malnutrition, so special supplementation is not usually required. You can take cod liver oil and calcium gluconate oral solution under the guidance of a health care practitioner for children’s growth and development. It is also important to take care of proper sun exposure and to diversify food to ensure comprehensive and balanced nutrition. If your child has a loss of appetite, diarrhoea, or lags behind their peers in growth and development, they need to be seen in hospital.