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Old January 28th, 2004, 09:37 PM
Pat Paris
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Default Study Links High-Carbs and Weight Loss -BS

On Wed, 28 Jan 2004 19:40:08 GMT, "Cubit" wrote:

I notice OP has no link to a reputable source, and creative stories have
been posted on USENET before.

Tcoeau has posted an alledged study, but also with no link to a reputable
source, like CNN.

Did I miss something? When did CNN become a reputable source for
anything?

This study may not exist. If it does, there are unaccounted for factors.

http://www.medscape.com/viewarticle/467707

Jan. 26, 2004 — An ad libitum high-complex carbohydrate (HI-CHO) diet
is effective for weight loss, according to the results of a 12-week,
randomized controlled diet study published in the Jan. 26 issue of the
Archives of Internal Medicine.

"The efficacy of ad libitum low-fat diets in reducing body weight and
fat in overweight and obese adults remains controversial," write
Nicholas P. Hays, PhD, from the University of Arkansas for Medical
Sciences in Little Rock, and colleagues. "[HI-CHO] diets have been
extensively recommended to prevent obesity and promote weight loss in
overweight individuals, based on evidence suggesting that these diets
reduce total energy intake, increase satiation, and are metabolized
with less energetic efficiency compared with high-fat diets."

Twenty women and 14 men with impaired glucose tolerance were
randomized to a control diet consisting of 41% fat, 14% protein, 45%
carbohydrates, and 7 g of fiber per 1,000 kcal; a HI-CHO diet
consisting of 18% fat, 19% protein, 63% carbohydrates, and 26 g of
fiber per 1,000 kcal; or a HI-CHO diet plus endurance exercise four
days per week, 45 minutes per day at 80% peak oxygen consumption. Mean
age was 66 ± 1 years. Subjects were provided with 150% of estimated
energy needs and permitted to consume food ad libitum.

The three groups were similar in total food intake, and energy intake
remained stable during the 12-week study in all groups. Weight loss
was -0.1 ± 0.6 kg in controls, -4.8 ± 0.9 kg (P = .003) in the HI-CHO
diet plus exercise group, and -3.2 ± 1.2 kg (P = .02) in the HI-CHO
diet without exercise group. Reduction in percentage of body fat was
-0.2% ± 0.6%, -3.5% ± 0.7% (P = .01) and -2.2% ± 1.2% (P = .049),
respectively.

Compared with controls, thigh fat area decreased in the HI-CHO diet (P
= .003) and HI-CHO diet plus exercise (P .001) groups. Resting
metabolic rate and fat oxidation did not decrease as a result of high
carbohydrate intake and weight loss. Because the weight loss in the
HI-CHO diet group cannot be explained by any differential in reported
energy intake between this group and the control group, the authors
suggest that there may be either bias in this method of food intake
assessment or the existence of metabolic differences attributable to
dietary macronutrient composition differences among groups.

"A high-carbohydrate diet consumed ad libitum, with no attempt at
energy restriction or change in energy intake, results in losses of
body weight and body fat in older men and women," the authors write.
"Participants never complained of feeling hungry, an important
consideration in the formulation of dietary strategies to promote
weight loss and long-term maintenance of a healthy body weight."

The National Institutes of Health helped support this study. One of
the authors is now with Pfizer Global Research and Development. The
authors report no relevant financial interest in this article.

Arch Intern Med. 2004;164:210-217