the changes for obese By tiffanysun Jan 1, 1980 the number of world obese was twice as before in that year the number of world obese was twice as before in that year Period: Jan 1, 1980 to Jan 31, 2013 the changes of obese in these years in the world Feb 3, 1990 there are more than 20 million children are obese Feb 2, 2002 China had more than 2 million obese people Feb 3, 2002 there are 25% of people are obese in the world Jan 31, 2008 There are more than 1.4 billion people overweight. There are more than 1.4 billion people overweight. Jan 1, 2010 more than 40 million chirldren are obese