The Canadian Food Inspection Agency issued a warning on July 8, 2026 after detecting a paralytic biotoxin in mussels, clams and oysters harvested from parts of Quebec's North Shore. The advisory advises residents and consumers to avoid eating shellfish from the affected areas until further notice.

The toxin was identified during routine testing of shellfish collected in the region. The agency’s announcement specifies that the contaminant was found in multiple species, including mussels, clams and oysters, which are commonly harvested and sold locally. No additional locations beyond the North Shore were mentioned in the notice.

The Canadian Food Inspection Agency is responsible for monitoring food safety across Canada and for issuing advisories when contaminants are discovered in domestically sourced foods. In this case, the detection of the paralytic biotoxin triggered the agency’s standard response, which includes public notifications and guidance to prevent consumption of potentially unsafe seafood.

Residents of the North Shore region are encouraged to stay informed through official CFIA communications and to follow any further instructions that may be released. The agency’s role includes ongoing sampling and analysis of seafood to ensure that products entering the market meet safety standards. When a contaminant such as a biotoxin is found, the CFIA typically works with local producers and distributors to halt the sale of affected products.

The warning underscores the importance of regular testing and surveillance of marine food sources. The CFIA continues to monitor the situation and will update the public as new information becomes available, aiming to protect public health while supporting safe consumption of Canadian seafood.