Our expert says:
The average weight for children aged 4 years is about 15 kg and the average height is approximately 97 cm, so based on your son's weight he is not really underweight. You don't mention how tall he is in cm, but some children grow more slowly than others and he may well experience a growth spurt a bit later on. If he eats dairy products, eggs, meat, fish, cereals and grains, vegetables and fruit then supplements are not necessary. However if you are concerned then it may be a good idea to have him and his present assessed by a dietitian (visit the Association for Dietetics in SA Website at: www.adsa.org.za and click on "Find a Dietitian" to find a dietitian in your area). If the dietitian finds that his food intake is not varied enough she/he will recommend which foods need to be added to his diet and if he requires supplements.
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