also known as Magnesium in Blood
An essential mineral found in every cell that supports energy production, heart rhythm, blood sugar control, and bone strength, with blood levels reflecting only a small fraction of your body's total
| # | Retailer | Lab | Seen | Price | |
|---|---|---|---|---|---|
| 1 | Instalabcheapest via Multi-lab (5) · seen today | Multi-lab (5) | today | $9 | order → |
| 2 | Jason Health via Quest · seen today | Quest | today | $15 | order → |
| 3 | HealthLabs seen today | — | today | $28 | order → |
| 4 | Accesa Labs seen today | — | today | $29 | order → |
| 5 | Request A Test via LabCorp · seen 1mo ago | LabCorp | 1mo ago | $34 | order → |
| 6 | Request A Test via Quest · seen 1mo ago | Quest | 1mo ago | $34 | order → |
| Vitamin B12 | 16 retailers | $10 |
| Magnesium RBC Test | 15 retailers | $8 |
| Ferritin | 15 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 |