Iron deficiency is the most common nutritional deficiency in children and is a challenging problem that can have serious negative consequences for children's health and development. If possible, it is better to try to take iron supplements on an empty stomach (about an hour before or two hours after a meal). prevent the absorption of iron.... **Do iron supplements cause complications in children?** There is little evidence of adverse gastrointestinal effects such as constipation in infants or toddlers using iron-fortified formula, cereals, or foods. Common side effects that may occur after taking iron supplements include: - Stomach ache - Nausea - Diarrhea - Constipation - Black stools Most of these symptoms disappear after a few weeks of taking iron supplements.. - Iron supplements can make the child's stool green or grayish-black, we must know that this is normal and nothing to worry about.... - Taking iron may cause abdominal pain, diarrhea or constipation.... We must make sure that the child does not drink enough fluids, eats fruits and vegetables.. Supplements away from children, because of excessive iron consumption can be very dangerous.. Iron** Liquid iron supplements, including drops and syrup, may cause a gray color on the teeth or gums. These effects are temporary and we can prevent or minimize it by putting iron drops in the back of children's mouths, brushing children's teeth, or rinsing the mouth with water after taking the supplement. are available that are usually well tolerated and do not cause some of the common side effects of oral supplements such as discoloration of children's teeth.. *** This general information is a limited summary of diagnostic, therapeutic and/or drug information.. It is not intended to be comprehensive and should be used as a tool to help the user understand and/or evaluate potential diagnostic and treatment options. This information does not contain all information about conditions, treatments, drugs, side effects or risks that may apply to a particular patient. Risks or benefits of using drugs. I reject this information or its use. * Among the medical services provided in the office are periodical examinations of children, periodical monitoring of children's growth and physical development, treatment of various infectious, digestive and respiratory diseases in children and adolescents, nutritional counseling, education and periodical care of premature babies, monitoring and treatment of all periodical problems during infancy, periodical mental and physical evaluation of children. > *special services of Dr. Mehdi Afshari: specialized office circumcision, home visit and online consultation* > > *Practice address: No... 193, Mehrabad South, South Air University, Tafaresh East, Tehran > > *Contact number: 021-66602506*