Navigation Links
Artificial sweeteners linked to weight gain
Date:2/10/2008

WASHINGTON Want to lose weight" It might help to pour that diet soda down the drain. Researchers have laboratory evidence that the widespread use of no-calorie sweeteners may actually make it harder for people to control their intake and body weight. The findings appear in the February issue of Behavioral Neuroscience, which is published by the American Psychological Association (APA).

Psychologists at Purdue Universitys Ingestive Behavior Research Center reported that relative to rats that ate yogurt sweetened with glucose (a simple sugar with 15 calories/teaspoon, the same as table sugar), rats given yogurt sweetened with zero-calorie saccharin later consumed more calories, gained more weight, put on more body fat, and didnt make up for it by cutting back later, all at levels of statistical significance.

Authors Susan Swithers, PhD, and Terry Davidson, PhD, surmised that by breaking the connection between a sweet sensation and high-calorie food, the use of saccharin changes the bodys ability to regulate intake. That change depends on experience. Problems with self-regulation might explain in part why obesity has risen in parallel with the use of artificial sweeteners. It also might explain why, says Swithers, scientific consensus on human use of artificial sweeteners is inconclusive, with various studies finding evidence of weight loss, weight gain or little effect. Because people may have different experiences with artificial and natural sweeteners, human studies that dont take into account prior consumption may produce a variety of outcomes.

Three different experiments explored whether saccharin changed lab animals ability to regulate their intake, using different assessments the most obvious being caloric intake, weight gain, and compensating by cutting back.

The experimenters also measured changes in core body temperature, a physiological assessment. Normally when we prepare to eat, the metabolic engine revs up. However, rats that had been trained to respond using saccharin (which broke the link between sweetness and calories), relative to rats trained on glucose, showed a smaller rise in core body temperate after eating a novel, sweet-tasting, high-calorie meal. The authors think this blunted response both led to overeating and made it harder to burn off sweet-tasting calories.

The data clearly indicate that consuming a food sweetened with no-calorie saccharin can lead to greater body-weight gain and adiposity than would consuming the same food sweetened with a higher-calorie sugar, the authors wrote.

The authors acknowledge that this outcome may seem counterintuitive and might not come as welcome news to human clinical researchers and health-care practitioners, who have long recommended low- or no-calorie sweeteners. Whats more, the data come from rats, not humans. However, they noted that their findings match emerging evidence that people who drink more diet drinks are at higher risk for obesity and metabolic syndrome, a collection of medical problems such as abdominal fat, high blood pressure and insulin resistance that put people at risk for heart disease and diabetes.

Why would a sugar substitute backfire" Swithers and Davidson wrote that sweet foods provide a salient orosensory stimulus that strongly predicts someone is about to take in a lot of calories. Ingestive and digestive reflexes gear up for that intake but when false sweetness isnt followed by lots of calories, the system gets confused. Thus, people may eat more or expend less energy than they otherwise would.

The good news, Swithers says, is that people can still count calories to regulate intake and body weight. However, she sympathizes with the dieters lament that counting calories requires more conscious effort than consuming low-calorie foods.

Swithers adds that based on the labs hypothesis, other artificial sweeteners such as aspartame, sucralose and acesulfame K, which also taste sweet but do not predict the delivery of calories, could have similar effects. Finally, although the results are consistent with the idea that humans would show similar effects, human study is required for further demonstration.


'/>"/>

Contact: Pam Willenz
public.affairs@apa.org
202-336-5700
American Psychological Association
Source:Eurekalert

Related medicine news :

1. Significantly higher success rates with artificial insemination
2. Artificial skin system can heal wounds
3. Wearable Artificial Kidney Passes Test
4. Brain measurements could lead to better devices to move injured or artificial limbs
5. New Herbal Water Creating Taste Sensation: Ayalas Herbal Water Has No Calories, No Preservatives and No Artificial Additives. Just All the Natural Benefits of Herbs!
6. Iron banded worms drying out of blood could be linked to Parkinsons and Alzheimers
7. FDA Warns of Childrens Deaths Linked to Botox
8. Gene Linked to Inflammatory Arthritis Also Raises Heart Risks
9. Birth Problems Linked to Teenage Fathers
10. Multiple Sclerosis Drug May Be Linked to Melanoma
11. Heavy marijuana use linked to gum disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/26/2017)... ... September 26, 2017 , ... “Childhood Memories of a Virginia Wanderer”: ... and help them relive their own youth. “Childhood Memories of a Virginia Wanderer” is ... US Navy for nine years. He received his BS from Idaho State University ...
(Date:9/26/2017)... ... ... story of the author and the exciting times this adventurer has lived through. “The Tour ... and the subject of the book. , “Quickly slapping a large smile on my ... off as a part of the adventure tour, an “added bonus” story they would never ...
(Date:9/26/2017)... ... ... Ceebie”: a tool families can use to teach children about the love of God. ... a devoted follower of Jesus Chris who is married with one son. Originally from ... children but also to glorified God in everything he does.” --G.S. White , Published by ...
(Date:9/25/2017)... ... ... Your World Insurance Services, a long-time Redlands insurance and financial services firm, ... owner Stacy Boyle to give back to the many charitable organizations that help families ... school,” said Ms. Boyle. “My father passed away without life insurance, and my mother, ...
(Date:9/25/2017)... ... September 25, 2017 , ... Sensogram Technologies Inc. today ... detection smart watch. VitalBand provides elite level fall detection, automatically calls any ... help arrives quickly. Plus, it’s a fully functioning smart watch and activity ...
Breaking Medicine News(10 mins):
(Date:9/6/2017)...  Medical professionals are expected to continuously ... their patients. Medical simulations offer clinicians the ... Simulation provides a safe method for teaching ... refine techniques and build confidence, without putting ... such as augmented reality, will now provide ...
(Date:9/5/2017)... another milestone in their continued growth and success of the company.  Xyntek has ... engagements regionally.  ... at 318 West Adams Street, Suite 1528, Chicago, IL ... Xyntek's recently opened Midwest office will support the ... In addition to Xyntek,s headquarters ...
(Date:9/1/2017)... Like Us ( https://explorerslikeus.com/ ) is embarking on "An American ... these experiences as part of Life Environments™, a new technology ... ... beats a walk, jog or simply playing in a garden ... next best thing when getting there isn’t possible. Life Environments™ ...
Breaking Medicine Technology: