A new global analysis says almost a third of the world is fat, and no country has been able to curb obesity rates in the last three decades.

The Institute for Health Metrics and Evaluation found that more than 2 billion people worldwide are now overweight or obese. Researchers reviewed more than 1,700 studies covering 188 countries from 1980 to 2013.

Metro Health Sports Medicine Physician Dr. Ed Kornoelje tells WOOD Radio modern medicine has an easy cure for most weight problems.

"If I could give you a pill that would lower your blood pressure, lower cholestrol, make you feel better, make you lose weight and lessen your chances of dying, you would take it. It is out there and it is called exercise."

Dr. Kornoelje says his successful weight loss patients simply eat less, excersize more and are patient in letting weight loss happen -- one to two pounds a week.

"Almost to a person, they ate less and did more. There was no miracle pill or piece of equipment. The just did more."