In an age when the adult populations of most industrialized nations have grown significantly taller, the average height of black women in the U.S. has been receding, beginning with those born in the late 1960s.

Physorg reports:
The difference in stature between white women and black women has now stretched to three-quarters of an inch and appears to be increasing, according to newly released data from the National Health and Nutrition Examination Survey (NHANES) conducted by the federal Centers for Disease Control and Prevention.

The main culprit appears to be diet. The average height of a black woman born in the 1980s is just under 5 feet 4 inches; her mother, born in the 1960s, is more than half an inch taller. Even her grandmother, born in the 1940s, is a bit taller. The average white woman born in the 1980s is about half an inch taller than her mother.

The gap is "truly phenomenal," according to John Komlos, an economist and historian who has made a specialty of studying human heights. READ MORE