Dr. Joe Schwarcz: Poppy seeds and athletes' urine tests

There are measurable amounts of morphine in poppy seeds used in foods such as poppy seed cake or bagels with poppy seeds, says Dr. Joe Schwarcz, McGill University Professor of Chemistry on Tuesday, December 20, 2017. Although small in amount, it can be enough to be detected in an athlete's urine sample. (Dave Sidaway / MONTREAL GAZETTE)