Fish oil diets cause changes in the steady state levels of myeloid progenitors in the bone marrow. (A) Colony forming cell (CFC) assay results of bone marrow from mice fed corn oil (high omega 6) vs. fish oil (high omega 3) diets until 60 days of age. Colonies formed represent the presence of a progenitor cell where the type of colony determines which progenitor cell type is present. Comparisons marked with (*) were found to be significantly different (p < 0.05). Error bars represent SEMs (n = 5). (B-C) Data from (A) where each colony type is shown as a proportion of total progenitor cell frequency for each diet.