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Alisonroad
Fri, Mar-03-06, 08:03
I was so happy to find this article....Redundant? Sure! But at least it is validating what we are all doing!
Yay team! :cheer: :cheer:



The Best Foods to Eat for Weight Loss

If you want to lose weight, exercise and eat protein.

A high-protein diet seems to enhance the benefits of exercise, helping you to lose fat without losing muscle, according to researchers from the University of Illinois. The best foods to eat for weight loss are meat, dairy products, eggs and nuts.

The study: In this four-month study, 48 obese female volunteers were divided into two groups. One group ate a protein-rich diet designed to contain specific levels of leucine, one of the essential amino acids. A second group consumed a diet based on the food guide pyramid, which contained higher amounts of carbohydrates. Both groups consumed the same number of calories, but the first group substituted high-quality protein foods, such as meats, dairy, eggs and nuts, for foods high in carbohydrates, such as breads, rice, cereal, pasta and potatoes. The study included two levels of exercise. One group walked two to three times a week, but less than 100 total minutes. The others participated in five 30-minute walking sessions each week, as well as two 30-minute weight lifting/stretching sessions.


The results: The obese women who exercised most days of the week and consumed a reduced-calorie diet of 1,700 calories that was high in protein, lost more fat and less muscle than the women who ate a diet high in carbohydrates. "Both diets work because, when you restrict calories, you lose weight. But the people on the higher-protein diet lost more weight," researcher Donald Layman, a professor of food science and human nutrition at the University of Illinois, said in a news release. They also lost more weight in the abdomen.

"There's an additive, interactive effect when a protein-rich diet is combined with exercise. The two work together to correct body composition; dieters lose more weight, and they lose fat, not muscle," says Layman. The higher-carbohydrate, lower-protein diet based on the USDA food guide pyramid actually reduced the effectiveness of exercise, Layman said.

While this protein-rich diet works for everyone, it seems to be even more effective for people who have high triglyceride levels and carry excess weight in their midsection--a combination of health problems known as Syndrome X. "The protein-rich diet dramatically lowered triglycerides and had a statistically significant effect on trunk fat, both risk factors associated with heart disease," Layman said. "Exercise helped dieters lose an even greater percentage of body fat from the abdominal area."

The study findings were published in the Journal of Nutrition.

JL53563
Fri, Mar-03-06, 08:34
Great news. Yes, it validates what we already knew. Just curious...where did you find the article? You rarely, if ever, see articles like this in the newspaper or hear about them on tv. If you dig around on the internet you can find them, but the mainstream media seems to have little interest in sharing this kind of info with us.

LC FP
Fri, Mar-03-06, 12:08
Dr. Layman was one of the lecturers at the Nutrition and Metabolism Society conference in NYC in January.

The Journal of Nutrition is a pretty mainstream journal.

GeorgeMead
Fri, Mar-03-06, 12:31
http://www.nutrition.org/cgi/content/abstract/135/8/1903

© 2005 The American Society for Nutritional Sciences J. Nutr. 135:1903-1910, August 2005



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Human Nutrition and Metabolism
Dietary Protein and Exercise Have Additive Effects on Body Composition during Weight Loss in Adult Women1,2
Donald K. Layman*,,3, Ellen Evans,**, Jamie I. Baum, Jennifer Seyler, Donna J. Erickson* and Richard A. Boileau**

* Department of Food Science and Human Nutrition; Division of Nutritional Sciences; and ** Department of Kinesiology, University of Illinois, Urbana, IL 61801



3To whom correspondence should be addressed. E-mail: dlayman~uiuc.edu.

This study examined the interaction of 2 diets (high protein, reduced carbohydrates vs. low protein, high carbohydrates) with exercise on body composition and blood lipids in women (n = 48, 46 y old, BMI = 33 kg/m2) during weight loss. The study was a 4-mo weight loss trial using a 2 x 2 block design (Diet x Exercise). Diets were equal in total energy (7.1 MJ/d) and lipids (30% energy intake) but differed in protein content and the ratio of carbohydrate:protein at 1.6 g/(kg · d) and <1.5 (PRO group) vs. 0.8 g/(kg · d) and >3.5 (CHO group), respectively. Exercise comparisons were lifestyle activity (control) vs. a supervised exercise program (EX: 5 d/wk walking and 2 d/wk resistance training). Subjects in the PRO and PRO + EX groups lost more total weight and fat mass and tended to lose less lean mass (P = 0.10) than the CHO and CHO + EX groups. Exercise increased loss of body fat and preserved lean mass. The combined effects of diet and exercise were additive for improving body composition. Serum lipid profiles improved in all groups, but changes varied among diet treatments. Subjects in the CHO groups had larger reductions in total cholesterol and LDL cholesterol, whereas subjects in the PRO groups had greater reductions in triacylglycerol and maintained higher concentrations of HDL cholesterol. This study demonstrated that a diet with higher protein and reduced carbohydrates combined with exercise additively improved body composition during weight loss, whereas the effects on blood lipids differed between diet treatments.



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KEY WORDS: • obesity • low-carbohydrate diets • blood lipids • insulin • adiponectinThis item requires a subscription to Journal of Nutrition Online.
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Dietary Protein and Exercise Have Additive Effects on Body Composition during Weight...
Layman et al. J. Nutr..2005; 135: 1903-1910.
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© 2004 The American Society for Nutritional Sciences J. Nutr. 134:968S-973S, April 2004


http://www.nutrition.org/cgi/content/full/134/4/968S?maxtoshow=&HITS=10&hits=10&RESULTFORMAT=&author1=Donald+Layman&andorexactfulltext=and&searchid=1141413976222_7851&FIRSTINDEX=0&sortspec=relevance&resourcetype=1&journalcode=nutrition
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Supplement: The Emerging Role of Dairy Proteins and Bioactive Peptides in Nutrition and Health
Dietary Protein Impact on Glycemic Control during Weight Loss1
Donald K. Layman2 and Jamie I. Baum*

Department of Food Science and Human Nutrition; * Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801



2To whom correspondence should be addressed. Email: dlayman~uiuc.edu.

Diets with higher protein (1.5 g · kg−1 · d−1) and reduced carbohydrates (120 to 200 g/d) appear to enhance weight loss due to a higher loss of body fat and reduced loss of lean body mass. While studies of prolonged use of moderate protein diets are not available, short-term studies report beneficial effects associated with increased satiety, increased thermogenesis, sparing of muscle protein loss, and enhanced glycemic control. Combined impacts of a moderate protein diet are likely derived from lower carbohydrates resulting in lower postprandial increase in blood glucose and lower insulin response, and higher protein providing increased BCAA leucine levels and gluconeogenic substrates. A key element in the diet appears to be the higher intake of BCAA leucine with unique regulatory actions on muscle protein synthesis, modulation of the insulin signal, and sparing of glucose use by stimulation of the glucose-alanine cycle. This review focuses on the contributions of leucine and the BCAA to regulation of muscle protein synthesis and glycemic control.



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KEY WORDS: • obesity • insulin • leucine • BCAASounds to me like the boy might be on our side...

JL53563
Fri, Mar-03-06, 16:31
Dr. Layman was one of the lecturers at the Nutrition and Metabolism Society conference in NYC in January.

The Journal of Nutrition is a pretty mainstream journal.

That may be, but I still haven't seen anything like this on the TV news or in my local newspaper. Most of us that have been around here awhile realize that there are quite a few studies that have bee done that have come to the conclusion that lower carb diets are both effective and safe, but you never here about them unless you really go digging for them.

Alisonroad
Fri, Mar-03-06, 17:24
Hello....
This was actually on the "news" section of my home start up page for "Netscape".

JL53563
Fri, Mar-03-06, 20:09
Hello....
This was actually on the "news" section of my home start up page for "Netscape".

Awesome. Hopefully the word will continue to get out. I have no doubt that it will become common knowledge that low-carb is safe and effective. It's just a question of how long it will take.

KarenJ
Fri, Mar-03-06, 20:35
Sounds to me like the boy might be on our side...

:agree:

Keep those studies rolling! :) Love it.