Tool
Supplement comparison tool
Pick up to 4 knowledge base entries and compare their dosage, price, evidence strength and ratings side by side — you can save or share a link to your selection.
Add to comparison (2/4)
| Category | Biomarkery | Biomarkery |
| Evidence strength | Moderate evidence | Strong evidence |
| Evidence Score | 3/5 | 5/5 |
| User rating | 4.1 (18) | 4.5 (61) |
| Typical dose | — | — |
| Form | — | — |
| Average price | — | — |
| Monthly cost | — | — |
| Time to effects | Not applicable — this is a functional assessment tool, not an intervention; changes in intrinsic capacity are typically assessed in cohort studies over a timescale of years. | Not applicable — ferritin is a diagnostic test, not an intervention. |
| Who it's for | Geriatric clinicians and healthcare systems interested in a model of care centered on function rather than disease alone | People with symptoms suggesting iron deficiency |