A traditional berry studied as a stress-resilience and healthy-aging supplement. The most credible human benefits are modest: better muscle strength when paired with light exercise, some relief of menopausal symptoms, and small improvements in blood sugar and cholesterol. Liver-protection evidence is strong in animals but unproven in people. Its main caution: it can change blood levels of some prescription drugs. (Full Review)
| Marker | Target | Why |
|---|---|---|
| ALT | ~10–26 U/L | Primary marker of liver-cell stress |
| AST | ~10–26 U/L | Complements ALT to gauge liver injury |
| GGT | <20–25 U/L | Sensitive marker of liver/biliary stress and oxidative load |
| Fasting glucose | 75–90 mg/dL | Tracks the metabolic-support signal seen in trials |
| HbA1c | <5.4% | Reflects 3-month average glucose for metabolic goals |
| Tacrolimus/cyclosporine trough | Per transplant target | Detects the key drug-interaction risk in immunosuppressed users |
Cadence: Re-check relevant labs at 8–12 weeks, then every 6–12 months during continued use; anyone co-administering a CYP3A-metabolized drug needs drug-level checks within 1–2 weeks of any change.