Dr Mark Porter puts his body mass index, or BMI, to the test. BMI is used to see if someone is too fat, too thin or just right, but how accurate is it? Show more
Discover 11,128,835 listings and 277,860 playable programmes from the BBC
Dr Mark Porter puts his body mass index, or BMI, to the test. BMI is used to see if someone is too fat, too thin or just right, but how accurate is it? Show more
The BBC's international radio station
