Amanita muscaria (fly agaric) is a mind-altering mushroom that adults use hoping for better sleep, less stress and pain relief. No controlled study of the mushroom itself has measured these effects; human evidence rests on user surveys, online discussions and folk tradition. Poisoning reports describe confusion, vomiting, loss of coordination and rare deaths, and many products are mislabeled. On current evidence, its harms are more firmly established than its benefits. (Full Review)
| Marker | Target | Why |
|---|---|---|
| eGFR and serum creatinine | eGFR above 90 mL/min/1.73 m²; creatinine 0.7–1.1 mg/dL | Urinary clearance of both compounds |
| ALT and AST | ALT below 25 U/L; AST below 25 U/L | Liver screen for co-ingested contaminants |
| Blood lead | Below 1 µg/dL | Tincture and dried-cap metal exposure |
| Urine cadmium | Below 0.5 µg/g creatinine | Cumulative cadmium exposure |
| Prolactin | Men 2–15 ng/mL; women 2–20 ng/mL | Muscimol raises prolactin |
| Resting heart rate and ECG | 50–70 beats per minute; normal conduction | Muscarine can slow the heart |
| Blood pressure | No established target; baseline before first use | Completes the baseline before first use |
| Sleep and mood log | No established target; track change from own baseline | Defines benefit |
Cadence: Baseline before first use; pulse and symptom notes on each use day; kidney, liver and prolactin tests at 3 months, then every 6–12 months with continued use; blood lead and urine cadmium every 6–12 months for frequent tincture or dried-cap users