A tart, caffeine-free tea from the roselle flower. Its strongest effect is gently lowering blood pressure, most clearly when pressure is already high. Weaker, less consistent signals touch cholesterol, blood sugar, and weight. Safe at normal intakes; the main concern is adding to blood-pressure or blood-sugar medications. Inexpensive and easy to sustain daily. (Full Review)
| Marker | Target | Why |
|---|---|---|
| Home blood pressure | ~110–120 / 70–78 mmHg | Primary target; tracks the main benefit |
| Fasting glucose | 75–86 mg/dL | Detects the glucose-lowering effect |
| HbA1c | <5.3% | Longer-term glucose trend |
| LDL cholesterol | <100 mg/dL | Tracks the conflicted lipid effect |
| Triglycerides | <80 mg/dL | Often the most responsive lipid |
| ALT / AST | ALT <25 U/L; AST <25 U/L | Safety check at higher doses |
| Serum potassium | 4.0–4.5 mmol/L | Safety when combined with diuretics |
| eGFR | >90 mL/min/1.73m² | Kidney safety with the diuretic effect and drug interactions |
Cadence: Blood pressure a few times weekly for the first 4–6 weeks, then periodically; glucose, lipids, liver and kidney markers at ~3 months, then every 6–12 months (sooner if combining with interacting medications).