It is not a surprise to many.
The number of severely obese people in this country is quickly rising.
According to a new study the proportion of Americans who are at least 100 pounds overweight increased by 50% from the year 2000 to 2005.
That is twice as fast as the growth seen in moderate obesity.
Researchers used body mass index, a measure that takes into account both weight and height for this study.
Obesity on the Rise