Scientists discover how thin people manage to stay slim


Scientists have explained why some people can eat whatever they want without gaining weight.

They are considered “super lean” with a BMI of less than 18.5.

Previously, it was thought that these individuals were more physically active and therefore burned more calories, University of Aberdeen researchers said.

But they found that super-lean people actually exercise less than their normal-weight counterparts, and they also eat about 12 percent less than people with a normal BMI.

Another unexpected finding from the research was that super-lean individuals had much higher than expected resting metabolic rates, which the researchers say is related to higher levels of circulating thyroid hormone.

Another surprise was that in super-lean people, their cholesterol and triglyceride profiles indicated good cardiovascular health.

Scientists did not expect this given their inactivity, and suggested that their low activity levels may be offset by their lean body composition.

Professor John Speakman, who led the research, said: “The results came as a real surprise.

“When people talk to super lean people, they often say they can eat whatever they want, but our work has shown that they actually eat a lot less than people with a normal BMI.” Scientists discover how thin people manage to stay slim

Fry Electronics Team

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