A daisy-family rhizome long used in Chinese herbal practice for digestion, fluid balance, and energy. Best human evidence supports relief of irritable-bowel-type symptoms and fewer chemotherapy-related digestive and immune side effects; longevity claims rest on tradition alone. Generally well tolerated. Almost all trials test multi-herb formulas, not the herb alone, so the case stays uncertain. (Full Review)
| Marker | Target | Why |
|---|---|---|
| ALT / AST | ~10–26 U/L each | Screens liver function before and during sustained use |
| Fasting blood glucose | 70–90 mg/dL | Detects additive glucose-lowering if combined with antidiabetic agents |
| INR (warfarin users only) | Within individual therapeutic target | Detects shifts in clotting from theoretical bleeding interaction |
| eGFR | >90 mL/min/1.73 m² | Confirms adequate clearance capacity before sustained use |
| hs-CRP | <1.0 mg/L | Tracks systemic inflammation the herb may influence |
Cadence: Reassess symptoms and tolerability at 2–4 weeks, then every 3–6 months; more frequent glucose or clotting checks if on interacting medications