Helps detect early and/or mild vitamin B12 deficiency
| # | Retailer | Lab | Seen | Price | |
|---|---|---|---|---|---|
| 1 | Accesa Labscheapest seen today | — | today | $99 | order → |
| 2 | True Health Labs seen 1w ago |
| 1w ago |
| $99 |
| order → |
| 3 | LabsMD seen today | — | today | $101 | order → |
| 4 | Request A Test via Quest · seen 1mo ago | Quest | 1mo ago | $105 | order → |
| 5 | DirectLabs seen today | — | today | $138 | order → |
| 6 | Walk-In Lab via LabCorp,Quest · seen today | LabCorp,Quest | today | $139 | order → |
| 7 | Jason Health via Quest · seen today | Quest | today | $585 | order → |
| Vitamin B12 | 16 retailers | $10 |
| Magnesium RBC Test | 14 retailers | $8 |
| Ferritin | 14 retailers | $9 |
| Calcium, Ionized | 14 retailers | $18 |
| Iodine Test | 13 retailers | $30 |
| Selenium | 12 retailers | $12 |
| Iron Test | 11 retailers | $13 |
| Zinc, Blood Test | 11 retailers | $11 |