We conclude that both serum and erythrocyte folate values reflect folate intake ; however , serum folate reacts more rapidly to folate intake than erythrocyte folate .
As to health outcomes , we found no evidence indicating that additional intake of folate can influence haematological parameters in non-anaemic paediatric patients .
We were unable to find evidence of a favourable effect of folate supplementation on the growth of infants .
However , the limited data available suggest that supplementing the diet of low-birth-weight infants with folic acid may moderate the rapid fall of serum and red cell folate in the first months of life
The aim of this systematic review was to collect all available r and omized controlled trials on the effect of folate supplementation on folate status and health outcomes within the paediatric age group .
Evaluation of Folic Acid Supplements in Children Taking Phenytoin
A double‐blind , cross‐over test of folic acid and placebo was carried out in children who had a folate deficiency due to prolonged treatment with phenytoin .  Despite large and long‐ lasting increases in blood folate levels , no associated changes were found in the frequency of fits , EEG , behaviour or gingival conditions . The trial therefore failed to reveal a relationship between the anti‐folate effects of phenytoin and its anticonvulsant action
We conclude that both serum and erythrocyte folate values reflect folate intake ; however , serum folate reacts more rapidly to folate intake than erythrocyte folate .
As to health outcomes , we found no evidence indicating that additional intake of folate can influence haematological parameters in non-anaemic paediatric patients .
We were unable to find evidence of a favourable effect of folate supplementation on the growth of infants .
However , the limited data available suggest that supplementing the diet of low-birth-weight infants with folic acid may moderate the rapid fall of serum and red cell folate in the first months of life
The aim of this systematic review was to collect all available r and omized controlled trials on the effect of folate supplementation on folate status and health outcomes within the paediatric age group .