Atkins: Weight Loss Good, Side Effects Bad - WLOX.com - The News for South Mississippi

09/02/04

Atkins: Weight Loss Good, Side Effects Bad

Dieters on the popular high-fat, low-carb Atkins approach lose just as much body fat as those on low-fat diets, but the annoying low-carb side effects could mean problems down the road, according to a scientist who reviewed five dozen diet studies.

Danish obesity expert Dr. Arne Astrup, whose survey is published this week in The Lancet medical journal, concludes that headaches, muscle weakness and either diarrhea or constipation are reported more often by Atkins dieters than people on conventional diets.

Those side effects may be signs that the eating plan isn't healthy in the long run, he says. However, other experts said the diet remains a viable option for some because the side effects aren't bad enough to throw them off the eating plan famous for its shunning of bread, pasta and many fruits.

"More people stayed in the low-carb group than in the low-fat group, so you've got to wonder how severe those side effects were if more people kept to the low-carb diet," said William Yancy, a Duke University researcher who conducted one of the major studies that Astrup reviewed.

The Atkins diet, which allows unlimited consumption of protein and fat but drastically limits carbohydrates and does not restrict calories, has had a following for decades but only recently has come under serious scientific scrutiny. It has been embraced by an estimated 20 million people worldwide.

In his review, Astrup, director of research in the department of human nutrition at the Royal Veterinary and Agricultural University in Frederiksberg, Denmark, examined the evidence from about 60 studies on the Atkins and other low-carb diets.

Several small studies in the last year or two have surprised the experts by showing that people lose more weight on the Atkins diet than on the standard low-calorie, low-fat diet, at least in the short term, with even better cholesterol improvements.

Longer studies have since shown that when dieters are followed for a year, the total weight loss ends up almost the same with the two approaches. The long-term effect on cholesterol has not been studied yet.

Experts have suspected that the weight loss on a low-carb diet may be largely due to water loss, because lots of fluid is bound up in the body's carbohydrate stores that are depleted. However, Astrup said body composition studies indicated the weight loss is a real fat loss, not just water.

The most frequent complaints with low-carb diets are constipation and headache, which are readily explained by the lack of fruit, vegetables and whole grains, Astrup said. Also, bad breath, muscle cramps, diarrhea, general weakness and rashes are more often reported on low-carb diets than on low-fat diets, Astrup found.

"The majority had some of these side effects in the Atkins group. In the control group, almost nothing," he said.

These side effects are consistent with carbohydrate deficiency, because the brain and muscle do not get enough sugar from carbohydrates to maintain their normal function, Astrup said.

"We have known for many years that there is a minimum intake of carbohydrate necessary to maintain the normal function of your body and that is approximately 150 grams a day," he said. "But, if on the Atkins diet you go down to 20 to 30 grams in the induction phase, then maybe go up to 100 grams, still you are far below what your body needs."

The body can coast along for a while with the carbohydrate stores in the liver and the muscles, but eventually problems start to occur, Astrup said.

"I think these symptoms are signs that something is wrong," Astrup said.

But Yancy, the U.S. researcher, said side effects were seen not just after six months but also at the beginning and could have been from dehydration, which is easily overcome.

"We know that it works," Yancy said. "I think it's good that people are acknowledging that this diet might be an option for people. ...At this point, we need options for people and when we're looking for options we need to consider even things that go against our judgment sometimes."

(Copyright 2004 by The Associated Press. All Rights Reserved.)

  • NEWSMore>>

  • Estimated 7,000 bodies may be buried at former asylum

    Estimated 7,000 bodies may be buried at former asylum

    Wednesday, May 23 2018 2:51 PM EDT2018-05-23 18:51:55 GMT
    Wednesday, May 23 2018 7:53 PM EDT2018-05-23 23:53:03 GMT
    (AP Photo/Rogelio V. Solis). In this May 9, 2018 photo taken in Starkville, Miss., Mississippi State University anthropologist Molly Zuckerman holds a portion of a mandible extracted from one of the graves unearthed at what was the graveyard of the Mis...(AP Photo/Rogelio V. Solis). In this May 9, 2018 photo taken in Starkville, Miss., Mississippi State University anthropologist Molly Zuckerman holds a portion of a mandible extracted from one of the graves unearthed at what was the graveyard of the Mis...
    Officials in Mississippi believe the remains of as many as 7,000 former patients at an asylum could be lying in an empty, grassy field on a university campus.More >>
    Officials in Mississippi believe the remains of as many as 7,000 former patients at an asylum could be lying in an empty, grassy field on a university campus.More >>
  • FDA warns teething medicines unsafe, wants them off shelves

    FDA warns teething medicines unsafe, wants them off shelves

    Wednesday, May 23 2018 9:43 AM EDT2018-05-23 13:43:09 GMT
    Wednesday, May 23 2018 7:35 PM EDT2018-05-23 23:35:34 GMT
    The Food and Drug Administration said that various gels and creams containing the drug benzocaine can cause rare but deadly side effects in children, especially those 2 years and younger. (Source: FDA)The Food and Drug Administration said that various gels and creams containing the drug benzocaine can cause rare but deadly side effects in children, especially those 2 years and younger. (Source: FDA)

    The US Food and Drug Administration health is warning parents about the risks of teething remedies.

    More >>

    The US Food and Drug Administration health is warning parents about the risks of teething remedies.

    More >>
  • Sheriff: Drugs, dogs seized from George Co. fighting ring

    Sheriff: Drugs, dogs seized from George Co. fighting ring

    Wednesday, May 23 2018 7:24 PM EDT2018-05-23 23:24:21 GMT
    An alleged dog fighting ring was discovered in George County. (Photo Source: WLOX)An alleged dog fighting ring was discovered in George County. (Photo Source: WLOX)

    An alleged dog fighting ring in George County was broken up today, according to the George County Sheriff's Office. 

    More >>

    An alleged dog fighting ring in George County was broken up today, according to the George County Sheriff's Office. 

    More >>
Powered by Frankly