Effect of Multi Strain Probiotic on Ferritin Levels in Children with Iron Deficiency

The goal of this clinical trial is to learn about the effect of multi-strain probiotic (bacteria and yeast) on ferritin levels in children age 1 - 18 years old who had iron deficiency in 15 orphanages of Makassar city. The main questions it aims to answer are: • Are ferritin levels in iron deficiency children given iron standard therapy with multi-strain probiotics (bacteria and yeast) higher than those given iron standard therapy with placebo? Researchers will compare iron standard therapy with multi-strain probiotics (bacteria and yeast) to a placebo to see if muti-strain probiotics works to treat iron deficiency in children. Participant will : * Take iron standard therapy with multi-strain probiotics (bacteria and yeast) or iron standard therapy with placebo every day for 30 days * Ferritin levels were evaluated on day 31