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Posted by: thepinetree on 12/26/2019 11:05 AM Updated by: thepinetree on 12/26/2019 11:05 AM
Expires: 01/01/2024 12:00 AM
:

Study Says Caffeine May Offset Some Health Risks of Diets High in Fat, Sugar

Champaign, IL...A new study in rats suggests that caffeine may offset some of the negative effects of an obesogenic diet by reducing the storage of lipids in fat cells and limiting weight gain and the production of triglycerides. Rats that consumed the caffeine extracted from mate tea gained 16% less weight and accumulated 22% less body fat than rats that consumed decaffeinated mate tea, scientists at the University of Illinois found in a new study. The effects were similar with synthetic caffeine and that extracted from coffee.


The new study from nutrition scientists Manabu Nakamura, left, Elvira Gonzalez de Mejia and Jan Novakofski shows how drinking mate tea can help moderate body fat accumulation.




Mate tea is an herbal beverage rich in phytochemicals, flavonoids and amino acids that’s consumed as a stimulant by people in southeastern Latin American countries. The amount of caffeine per serving in mate tea ranges from 65-130 milligrams, compared with 30-300 milligrams of caffeine in a cup of brewed coffee, according to the study.

For four weeks, the rats in the study ate a diet that contained 40% fat, 45% carbohydrate and 15% protein. They also ingested one of the forms of caffeine in an amount equivalent to that of a human who drinks four cups of coffee daily.

At the end of the four-week period, the percentage of lean body mass in the various groups of rats differed significantly. The rats that ingested caffeine from mate tea, coffee or synthetic sources accumulated less body fat than rats in the other groups.

The study, published recently in the Journal of Functional Foods, adds to a growing body of research that suggests mate tea may help fight obesity in addition to providing other beneficial health effects associated with the phenolic compounds, vitamins and flavonoids it contains.

“Considering the findings, mate tea and caffeine can be considered anti-obesity agents,” said Elvira Gonzalez de Mejia, a co-author of the study and director of the division of nutritional sciences at the U. of I. “The results of this research could be scaled to humans to understand the roles of mate tea and caffeine as potential strategies to prevent overweight and obesity, as well as the subsequent metabolic disorders associated with these conditions.”

In the rats, the accumulation of lipids in the adipocytes was significantly associated with greater body weight gain and increased body fat, according to the study.

To determine the mechanism of action, the scientists performed cell culture studies in which they exposed adipose cells from mice to synthetic caffeine or the coffee or mate caffeine extracts. They found that regardless of its source, caffeine decreased the accumulation of lipids in adipose cells by 20%-41%.

The scientists also tracked the expression of several genes associated with obesity and lipid metabolism. These included the fatty acid synthase gene (Fasn), an enzyme compound involved in the synthesis of fatty acids from glucose; and the lipoprotein lipase gene (Lpl), which codes for an enzyme that breaks down triglycerides.

All of the caffeine treatments, regardless of origin, significantly downregulated the expression of both Fasn and Lpl. In the cell cultures, Fasn expression diminished by 31%-39%, while Lpl expression decreased by 51%-69% among cells treated with synthetic caffeine or the caffeine from mate tea or coffee, they found.

In the rats that consumed the mate tea caffeine, expression of Fasn decreased by 39% in their fat tissue and by 37% in their livers, the researchers found.

The decreased expression of Fasn and two other genes in the liver evoked lower production of low-density lipoprotein cholesterol and triglycerides in the liver as well, according to the study.

“The consumption of caffeine from mate or from other sources alleviated the negative impact of a high-fat, high-sucrose diet on body composition due to the modulation of certain lipogenic enzymes in both adipose tissue and the liver,” de Mejia said. “The decreased expression of Fasn and Lpl brought about lower synthesis and accumulation of triglycerides in the adipose tissue.”

Then-graduate student Fatima J. Zapata was the lead author of the study, which was co-written by graduate student Miguel Rebollo-Hernanz, animal sciences professor Jan E. Novakofski and nutritional sciences professor Manabu T. Nakamura.

The work was funded by the U. of I. Division of Nutritional Sciences.


Comments - Make a comment
The comments are owned by the poster. We are not responsible for its content. We value free speech but remember this is a public forum and we hope that people would use common sense and decency. If you see an offensive comment please email us at news@thepinetree.net
No Subject
Posted on: 2019-12-26 12:35:20   By: Anonymous
 
Sounds like fake news for fat America

[Reply ]

    Re:
    Posted on: 2019-12-26 13:11:25   By: Anonymous
     
    In the picture, snapped in the darkness of a Wilton vineyard, Jack Kautz crouches behind a dead buck, smiling as he holds up the animal's head by its freakishly large set of antlers.

    It was a buck for the record books with sprawling antlers about an arm's width apart. If Katuz 52, had been had been able to claim it is as official trophy, he could have added it to his long list of accomplishments detailed on the website of his family's Lodi grape growing business, Ironstone Vineyards.

    [Reply ]

      Re: /\/\ Jack Kautz
      Posted on: 2019-12-26 14:34:39   By: Anonymous
       
      WTH? And who the H is Jack Kautz and what does he have to do with this article. I keep seeing this redundant, ludicrous, and senseless comment on PT every once in a while. Whoever is doing this: Grow up!

      [Reply ]

        Re: /\/\ Jack Kautz
        Posted on: 2019-12-26 19:07:39   By: Anonymous
          Edited By: thepinetree
        On: 2019-12-27 12:02:23
        Enough on the Kautz antlers...only been two years

        [Reply ]

          Re: /\/\ Jack Kautz/\/\ son of Ironstone Vineyards
          Posted on: 2019-12-27 10:24:48   By: Anonymous
           
          OK-so what does he have to do with this article?

          [Reply ]

        Re: /\/\ Jack Kautz
        Posted on: 2019-12-27 06:40:15   By: Anonymous
         
        You don't know Jack, and that's a fact.

        [Reply ]

          Re: /\/\ Jack Kautz
          Posted on: 2019-12-27 08:14:20   By: Anonymous
           
          ^^Yeah, but I know your Mom inside and out.


          [Reply ]

        Re: /\/\ Jack Kautz
        Posted on: 2019-12-28 07:38:36   By: Anonymous
         
        You've only been up here 18 months or you live under a rock. The Kautzs are the developers / vintners who built ironstone and many amenities around Murphys. Hard working, hard driving, business folk. They make mistakes, do dumb things too, just like normal people. Their detractor who bangs on that dumb story is likely a jealous bleeding heart liberal whiner.

        [Reply ]

No Subject
Posted on: 2019-12-27 08:04:10   By: Anonymous
 
So what they're saying is you can have another slice of that double double chocolate cake as long as you have a cup of coffee?

[Reply ]


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