| IDA | Iron deficiency anemia |
| B. lactis Ca360 | Bifidobacterium animalis subsp. lactis Ca360 |
| L. plantarum 299v | Lactobacillus plantarum 299v |
| SCFA | Short-chain fatty acid |
| FeSO4 | Ferrous sulfate |
| PBS | Phosphate-buffered saline |
| HGB | Hemoglobin content |
| RBC | Red blood cells |
| HCT | Hematocrit |
| MCV | Mean corpuscular volume |
| ELISA | Enzyme-linked immunosorbent assay |
| EPO | Erythropoietin |
| sTfR | Soluble transferrin receptor |
| H&E | Hematoxylin and Eosin |
| RT-qPCR | Real-time quantitative polymerase chain reaction |
| DcytB | Duodenal cytochrome B |
| DMT1 | Divalent metal transporter 1 |
| H2 | Hydrogen |
| PCoA | Principal coordinate analysis |