Modified citrus pectin is usually about five grams one to three times daily on empty stomach. Studies without a comparison group associated it with slower-rising prostate-cancer marker after prostate treatment and higher urinary lead, cadmium, arsenic. Randomized experiment did not change heart-scarring tests. Gas and loose stools are usual; potassium matters in advanced kidney disease. Not a demonstrated longevity therapy. (Full Review)
| Marker | Target | Why |
|---|---|---|
| Galectin-3 | Track change from personal baseline; many functional clinics aim near or below ~13 ng/mL | Surrogate for Gal-3 burden |
| Serum potassium | 4.0–4.8 mmol/L | Detects powder-related potassium load |
| eGFR (from creatinine) | >90 mL/min/1.73 m² | Kidney filtration sets potassium risk |
| PSA (men with prostate history) | Track doubling time versus the person's pre-supplement slope | Only repeated human outcome used in trials |
| Blood or 24-hour urine lead/cadmium/arsenic | Fall in blood or rise in urine versus the person's baseline | Confirms whether metal excretion occurred |
Cadence: Baseline potassium and eGFR before high-dose use. Labs at 4 weeks, 12 weeks, then every 3–6 months at about 15 g/day, and every 6–12 months on 5 g maintenance. Recheck potassium 1–2 weeks after 15 g/day starts, and sooner if an ACE inhibitor, ARB, or potassium-sparing diuretic is added or eGFR is below 60. Repeat metal testing at 4–8 weeks if excretion is the goal. PSA follows existing biochemical-surveillance cadence.