PQQ exposure and short-term biomarkers
Ingredient evidence
Harris et al. · 2013 · J Nutr Biochem
Study details
- Evidence Type
- Short human supplementation study, baseline comparisons
- Studied Material / Formulation
- PQQ added to a fruit-flavoured drink, without coenzyme Q10.
- Population
- 10 adults
- Dose
- 0.2 mg/kg single dose; 0.3 mg/kg/day in short repeated-dose phase
- Duration
- Up to 48-hour sampling; 3-day repeated dosing
- Main Findings
- Selected inflammatory and metabolic biomarkers changed; one measured antioxidant-capacity endpoint did not change significantly.
- Limitations
- Small and short; no described placebo arm. Indirect metabolic measures, not clinical benefit or PQQ–CoQ10 synergy.
- Product Relevance
- Relevant ingredient evidence; different formulation
- DR.MORGAN finished product studied
- NO
This study was not conducted on the finished DR.MORGAN product.
Funding and disclosures
full-paper review: Mitsubishi Gas Chemical supplied PQQ and partly funded the work; UC Davis support.