Ciocan et al. 2021 — Lead poisoning from Ayurvedic supplement, Italy
A 30-year-old Indian sailor presented in Italy with microcytic anemia, abdominal pain, emesis, and jaundice following months of oral Ayurvedic medication; blood lead was confirmed at 102 µg/dL on initial testing at an external hospital and 74.61 µg/dL at admission to the authors’ occupational health unit. ICP-MS analysis of the four Ayurvedic product samples identified extremely high concentrations of lead and mercury in three of four preparations, with lead reaching 23,043 mg/kg and mercury reaching 145,711 mg/kg, concentrations orders of magnitude above the highest reported soil values for the patient’s home region in Uttar Pradesh, India. The patient required three EDTA chelation cycles; blood lead at discharge was 36.27 µg/dL.
Key numbers
- Blood lead at first external evaluation: 102 µg/dL; at admission to occupational health unit: 74.61 µg/dL; urinary lead at admission: 94.7 µg/L; blood lead at discharge after three chelation cycles: 36.27 µg/dL.
- Ayurvedic product concentrations by ICP-MS (mg/kg):
- Product 1: Pb 2.31, Hg 2.54, As 0.35
- Product 2A: Pb 12,638.54, Hg 89,076.70, As 134.94
- Product 2B: Pb 23,043.02, Hg 126,640.27, As 103.98
- Product 2C: Pb 21,352.97, Hg 145,710.64, As 122.30
- Comparable highest soil concentrations for Uttar Pradesh (literature): Pb 520 mg/kg, Hg 0.49 mg/kg, As 12 mg/kg.
- Occupational exposure excluded: blood and urinary lead in three crew members were normal; >150 shipboard products tested lead-free.
- Patient dose: approximately one tablespoon of product 1 mixed with one tablespoon each of products 2A, 2B, and 2C, twice daily.
Methods (brief)
ICP-MS on 0.5 g product samples after nitric acid digestion (80°C furnace, 1 hour) and 1:1000 dilution; analytes: As, Hg, Cu, Cr, Mn, Fe, Ni, Pb. Clinical biomarkers: blood and urinary lead by ICP-MS, ALA dehydratase, ZPP, hemoglobin, liver enzymes, bilirubin. Treatment: EDTA 2 g IV day 1, then 1 g/day for 4 days per cycle, three cycles total. Case report design; no quantified daily dose of each product reported.
Implications
Certification: Ayurvedic supplements containing Rasa Shastra-style metal-added preparations (bhasmas, rasas) can deliver lead and mercury at concentrations that are 10,000-fold higher than regulatory food limits. HMT&C assessments of TCM, Ayurvedic, or other traditional medicine-derived supplements must screen for intentionally added metals, not only environmental contamination. This case illustrates that high-mercury concentrations in a supplement may not cause mercury-specific toxicity if the mercury form (inorganic) has low gastrointestinal absorption, while lead toxicity can be severe and acute.
Courses: Illustrates the supplement safety gap for traditional medicines regulated as food supplements in Western jurisdictions; contrasts intentional metal addition (Rasa Shastra philosophy) with accidental environmental contamination. Also relevant to speciation: the absence of mercury-specific symptoms despite extremely high mercury in the supplement is consistent with poor intestinal absorption of inorganic Hg forms.
App: Ayurvedic and traditional Indian medicine supplements should be flagged as high-risk matrices for Pb, Hg, and As regardless of natural or traditional status.