Researchers find MSG use linked to obesity

Aug 13, 2008

People who use monosodium glutamate, or MSG, as a flavor enhancer in their food are more likely than people who don't use it to be overweight or obese even though they have the same amount of physical activity and total calorie intake, according to a University of North Carolina at Chapel Hill School of Public Health study published this month in the journal Obesity.

Researchers at UNC and in China studied more than 750 Chinese men and women, aged between 40 and 59, in three rural villages in north and south China. The majority of study participants prepared their meals at home without commercially processed foods. About 82 percent of the participants used MSG in their food. Those users were divided into three groups, based on the amount of MSG they used. The third who used the most MSG were nearly three times more likely to be overweight than non-users.

"Animal studies have indicated for years that MSG might be associated with weight gain," said Ka He, M.D., assistant professor of nutrition and epidemiology at the UNC School of Public Health. "Ours is the first study to show a link between MSG use and weight in humans."

Because MSG is used as a flavor enhancer in many processed foods, studying its potential effect on humans has been difficult. He and his colleagues chose study participants living in rural Chinese villages because they used very little commercially processed food, but many regularly used MSG in food preparation.

"We found that prevalence of overweight was significantly higher in MSG users than in non-users," He said. "We saw this risk even when we controlled for physical activity, total calorie intake and other possible explanations for the difference in body mass. The positive associations between MSG intake and overweight were consistent with data from animal studies."

As the percentage of overweight and obese people around the world continues to increase, He said, finding clues to the cause could be very important.

"The U.S. Food and Drug Administration and other health organizations around the world have concluded that MSG is safe," He said, "but the question remains – is it healthy?"

Source: University of North Carolina at Chapel Hill

Explore further: Researchers developing an artificial vision system for prosthetic legs to improve gait

add to favorites email to friend print save as pdf

Related Stories

Huge spring tides draw crowds to French Atlantic coast

17 hours ago

France kicked off nearly a month of exceptionally large spring tides Saturday, as tourists flocked to coastal areas to witness spectacularly high water levels ahead of the so-called "tide of the century" ...

Water in Oregon pipeline is tapped for electricity

19 hours ago

Lucid Energy has developed a renewable energy system that makes use of water moving through pipelines. The company's LucidPipe Power System converts pressure in water pipelines into electricity. They have ...

Arctic oil drillers face tighter US rules to stop spills

21 hours ago

Royal Dutch Shell Plc and any oil drilling company that prospects in the Arctic Ocean must boost safety practices to prevent spills in the frigid and often hostile waters or mitigate the impact, U.S. regulators proposed Friday.

Recommended for you

Many transplant surgeons suffer burnout

Feb 25, 2015

Despite saving thousands of lives yearly, nearly half of organ transplant surgeons report a low sense of personal accomplishment and 40% feel emotionally exhausted, according to a national study on transplant surgeon burnout

5 tips for handling early-year medical expenses

Feb 25, 2015

The clock on insurance deductibles reset on Jan. 1, and that means big medical bills are in store for some. Patients may be required to pay thousands of dollars before their health care coverage kicks in.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.