Giving iron supplements to children with marginally low birth weights (2000-2500 grams) dramatically reduces the risk of developing iron deficiency and anemia. This is shown by Umeå researcher Magnus Domellöf and associates in the coming edition of the pediatric scientific journal Pediatrics.
It has recently been discovered that both birth weight and the infants' nutrition supply are important risk factors for later morbidity in adulthood. Due to high nutritional requirements, infants with low birth weight are at risk of developing nutrient deficiencies during their first year of life, including iron deficiency. Iron is necessary for the production of hemoglobin for the blood, and also for the development of the brain. Iron deficiency in infants has been shown to be associated with poor neurological development.
The present study included 285 children with marginally low birth weights (2000-2500 g). They were randomly divided into three groups that were given different amounts of iron drops (0, 1, or 2 mg per kg daily) from the age of 6 weeks to 6 months. Among children who were given placebo drops (no iron) 36% had iron deficiency and 10% iron-deficiency anemia at the age of 6 months, whereas the corresponding figures for children who received 2 mg of iron were 4% and 0%. At greatest risk of developing iron deficiency were those children who were fully breast-fed at the age of 6 weeks. They ran an 18% risk of developing iron-deficiency anemia by the age of 6 months if they did not receive iron drops.