"Rather than worry about 'detoxing,' people would be better off thinking about eating nutritious, health-promoting foods on a daily basis. Think leafy greens, beans, whole fruit, nuts, and seeds. The idea that six months of unhealthy eating can somehow be remedied by drinking nothing but green juice for 72 hours is erroneous."
Doesn't really answer the question of the title. The authors can't determine what happens during a detox because the detox sellers don't mention any toxins by name.
"Rather than worry about 'detoxing,' people would be better off thinking about eating nutritious, health-promoting foods on a daily basis. Think leafy greens, beans, whole fruit, nuts, and seeds. The idea that six months of unhealthy eating can somehow be remedied by drinking nothing but green juice for 72 hours is erroneous."