Diet and cancer Substances that cause cancer should not
Chapter 6, Problem 6.35(choose chapter or problem)
Diet and cancer Substances that cause cancer should not appear in our food. We dont want to experiment on people to learn what substances cause cancer, so we experiment on rats instead. Th e rats are specially bred to have more tumors than humans do. Th ey are fed large doses of the test chemical for most of their natural lives, about 2 years. Briefl y discuss the questions that arise in using these experiments to decide what is safe in human diets.
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