Check to see if you have the recalled product in your home. Recalled products should be thrown out or returned to the store where they were purchased. If you are unsure of the source of the clams, check with your place of purchase. Paralytic shellfish toxins are a group of natural toxins that sometimes accumulate in bivalve shellfish that include oysters, clams, scallops, mussels and cockles. Non-bivalve shellfish, such as whelks, can also accumulate PSP toxins. These toxins can cause PSP if consumed. Symptoms of PSP include tingling and numbness of the lips, tongue, hands and feet, and difficulty swallowing with an onset of a few minutes and up to 10 hours after consumption. In severe situations, this can proceed to difficulty walking, muscle paralysis, respiratory paralysis and death. Learn more about the health risks or Learn more about common food allergies Sign up for recall notifications by email and follow us on social media View our detailed explanation of the food safety investigation and recall process Report a food safety or labelling concern