A mineral-rich traditional resin with early promise for a few age-related measures: modestly higher testosterone in middle-aged men, better-preserved bone strength in women past menopause, and lower inflammation and free-radical damage. Claims about energy, brain aging, cancer, and longer life stay unproven. The dominant safety concern is toxic-metal contamination in low-quality products. (Full Review)
| Marker | Target | Why |
|---|---|---|
| Total testosterone (men) | ~500–900 ng/dL | Tracks the main hormonal benefit |
| Free testosterone (men) | Upper third of lab range | More biologically active fraction |
| Estradiol (E2) | ~20–30 pg/mL (men) | Detects excess conversion of testosterone |
| Ferritin | ~50–150 ng/mL | Guards against iron overload from enhanced absorption |
| hsCRP | < 1.0 mg/L | Tracks the anti-inflammatory benefit |
| PSA (men > 40) | < 1.0–1.5 ng/mL, stable | Prostate safety with any hormone-affecting agent |
| Comprehensive metabolic panel | Normal liver enzymes and eGFR | Organ safety, including kidney clearance |
| Complete blood count | Within reference range | General safety and iron-related indices |
| Uric acid | ~3.5–6.0 mg/dL | Addresses the theoretical gout concern |
| Bone mineral density (DEXA) | T-score improving or stable | Confirms the bone benefit in at-risk women |
Cadence: Baseline before starting, then at ~8–12 weeks, then every 6–12 months; bone density reassessed every 1–2 years