Full Breakdown
New Postbiotic Supplement Qi601 Binds Microplastics in Early Tests
7/19/2026, 4:52:30 AM
Qi601 Postbiotic Binds Microplastics in Early Tests
Researchers at Quorum Innovations have developed a supplement called Qi601, made from heat-killed *Limosilactobacillus fermentum* cells. Laboratory models of the human gut lining showed that the rough bacterial cell walls attract and trap plastic particles smaller than 5 mm. In a small human trial, participants chewed commercial gum that releases microplastic fragments; adding 10 mg of powdered Qi601 reduced free plastic particles in saliva from 2,152 to 185.
Health Context of Microplastic Exposure
Microplastics have been detected throughout the body, including blood, arterial plaque, and brain tissue. Some studies associate plastic-laden arterial plaques with a more than four-fold increase in heart-attack or stroke risk, and higher brain concentrations have been reported in people with Alzheimer’s disease. The causal relationship remains unproven.
Laboratory and Human Trial Results
In simulated digestive fluids, up to 92 % of nanoplastics (<0.001 mm) bound spontaneously to Qi601. When intestinal-like cells were exposed to nanoplastics, the presence of Qi601 reduced intracellular and surface-bound particles. Adding Qi601 after a 24-hour exposure lowered internal plastic counts by 43 %, likely by capturing particles during vesicle recycling. The human gum-chewing test demonstrated a ten-fold reduction in detectable saliva particles, though the study did not track whether bound plastics were subsequently excreted.
Official Statements & Criticism
Quorum Innovations’ co-founder and chief scientific officer Eva Berkes emphasized the need for a “reasonably safe and fairly inexpensive way of modifying [potential] risks” while acknowledging that definitive health effects of microplastics are still unknown. Martin Wagner of the Norwegian University of Science and Technology cautioned that the postbiotic would not address inhaled particles or continuous exposure from food, water, and air, arguing that source-level reduction is more efficient.
Verbatim Quotes
- “We don’t really know what microplastics do, but we do know they don’t belong in the human body,” — Eva Berkes, Co-founder & Chief Scientific Officer, Quorum Innovations
- “Our results represent the first demonstration of microplastics being bound by a microplastic mitigant in [people],” — Eva Berkes, Quorum Innovations
- “[The postbiotic] would not remove the inhaled particles, a major source of exposure, nor would it address the continuous nature of exposure,” — Martin Wagner, Norwegian University of Science and Technology
- “Reducing these exposures at the source is much more efficient in protecting health, rather than trying to remove plastic particles from the body retrospectively.” — Martin Wagner, Norwegian University of Science and Technology
