Isolated salidroside has a thin human record: a short course in young exercisers reported better high-intensity oxygen use and a smaller rise in a muscle-damage marker. Mood and fatigue findings come mainly from mixed Rhodiola extracts. Longevity claims rest on laboratory work. Risks look modest at studied isolated doses; extracts can cause dizziness; product identity is often unreliable. (Full Review)
| Marker | Target | Why |
|---|---|---|
| Seated blood pressure | 110–120 / 70–80 mmHg; watch change from own baseline | Detects additive hypotension |
| Fasting glucose | 75–85 mg/dL (4.2–4.7 mmol/L), or stable vs own baseline | Detects extra glucose-lowering |
| ALT | Women <20–25 U/L; men <25–30 U/L if using high-dose extract | Screens liver strain from multi-herb products |
| Morning salivary or serum cortisol | Mid-lab range, or a flatter awakening rise vs own baseline | Extract trials altered the awakening cortisol response |
| hs-CRP | <0.7–1.0 mg/L, or down vs own baseline | Optional inflammation context |
Cadence: Blood pressure and sleep/mood log at 1 week and 4 weeks, then every 3–6 months if continued; fasting glucose at 4 weeks if diabetes drugs or low baseline glucose; training test at the end of a 2–4 week block