No Change in Endogenous Bifidobacteria Levels
| Supplement | Research Paper | Effect Type | Effect Size |
|---|---|---|---|
| Bifidobacterium lactis VK2 | 10.1016/j.jbiosc.2011.12.016 | Neutral | Small |
| Bifidobacterium animalis subsp. lactis CECT 8145 | 10.1016/j.jbiosc.2011.12.016 | Neutral | Small |