Molybdenum is an essential trace mineral, sold as a dietary supplement most often for sensitivity to sulfite preservatives. Ordinary diets already supply ample amounts, and the evidence offers little reason to expect benefit from extra molybdenum; sulfite, "detox" and bone claims rest on mechanism, anecdote or very short studies. Nutritional amounts appear safe, while concerns about copper loss and gout-like illness arise at intakes well above typical supplement doses. (Full Review)
| Marker | Target | Why |
|---|---|---|
| Serum copper | 90–120 µg/dL | Detects copper depletion |
| Ceruloplasmin | 20–35 mg/dL | Copper-carrier protein |
| Serum uric acid | 3.5–5.5 mg/dL | Gout-risk screen |
| eGFR | 90 mL/min/1.73 m² or higher | Kidney excretion capacity |
| Complete blood count with differential | Neutrophils 2,000–6,000/µL; hemoglobin 13.5–15.5 g/dL (men), 12.5–14.5 g/dL (women) | Detects copper-deficiency marrow effects |
| ALT / AST | ALT below 25 U/L | Liver-stress screen |
| Serum or urinary molybdenum | No established target; track change from own baseline | Documents intake or accumulation |
| Total testosterone (men) | 500–900 ng/dL | Reproductive-hormone check |
Cadence: Baseline copper status, uric acid and kidney function before a standalone supplement (none needed for a multivitamin at nutritional doses); above 150 µg/day, copper, ceruloplasmin and uric acid at 8–12 weeks, then every 6–12 months; under tetrathiomolybdate, blood counts, liver enzymes and ceruloplasmin every 2–4 weeks during titration, then monthly