Study Links MSG With Being Overweight

This is one reason why in our house, we avoid MSG, high frutose corn syrup, other synthetics and too much processed food in general. It’s not healthy and there is increasing evidence that supports this. MSG is no exception…

Study Links MSG With Being Overweight
The Herald-Sun
August 18, 2008

If you use MSG — monosodium glutamate — as a flavor enhancer in your food, you are more likely than people who don’t use it to be overweight or obese.

That’s the conclusion of a study by UNC researchers at the School of Public Health published this month in the journal Obesity. The study noted that those who use MSG are more likely to be obese even though they have the same amount of physical activity and total caloric intake as those who don’t.

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.”

Wide Use

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?”

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