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 | Strong evidence | Strong evidence |
| Evidence Score | 5/5 | 5/5 |
| User rating | 4.5 (61) | 4.7 (94) |
| Typical dose | — | Values: below 5.7% normal, 5.7–6.4% prediabetes, 6.5% and above diabetes (when confirmed) |
| Form | — | A single blood test, no fasting required |
| Average price | — | — |
| Monthly cost | — | — |
| Time to effects | Not applicable — ferritin is a diagnostic test, not an intervention. | The result reflects averaged glycemia from the past 2–3 months — a lifestyle change will only show up in the HbA1c result after several weeks to a few months. |
| Who it's for | People with symptoms suggesting iron deficiency | People with risk factors for type 2 diabetes |