Featured Research

from universities, journals, and other organizations

Dieters Decrease Heart Risk On Moderate Fat Program

Date:
January 29, 2004
Source:
Penn State
Summary:
Although low-fat diets are recommended for heart health, a moderate-fat weight loss diet reduced dieters' cardiovascular risk better than a low-fat diet in a study conducted at Penn State.

Although low-fat diets are recommended for heart health, a moderate-fat weight loss diet reduced dieters' cardiovascular risk better than a low-fat diet in a study conducted at Penn State.

The moderate-fat diet, in which half the fat was monounsaturated fat from peanuts and peanut oil, produced a 14 percent reduction in cardiovascular disease risk. The low fat group experienced a nine percent improvement. Both the moderate and low fat diets were controlled so that all participants lost about the same amount of weight -- approximately 2.4 to 2.7 pound a week on average.

Dr. Penny Kris-Etherton, distinguished professor of nutrition, says, "While the low-fat diet successfully reduced risk factors during the weight loss phase of the study, those factors rebounded during the maintenance phase."

The study is in the February issue of the American Journal of Clinical Nutrition in a paper, "Effects of Moderate-Fat (from monounsaturated fat) and Low-fat Weight-loss Diets on the Serum Lipid Profile in Overweight and Obese Men and Women." The authors are Dr. Christine Pelkman, former Penn State postdoctoral researcher who is now at the University at Buffalo; Kris-Etherton; Valerie K. Fishell, former Penn State research assistant; Deborah Maddox, Penn State clinical coordinator; Dr. Thomas A. Pearson, University of Rochester; and Dr. David T. Mauger, associate professor health evaluation sciences, Penn State College of Medicine.

Fifty-three overweight or obese men and women participated in the study. All of the participants had total cholesterol levels elevated above 200 at the start of the dieting.

The participants ate either a low-fat or moderate-fat diet designed to produce weight loss for six weeks and then similar diets designed for maintenance for four weeks. The foods were all provided by the researchers and provided 18 percent of calories from fat in the low-fat diet or 33 percent of calories from fat in the moderate fat diet.

Over the course of the study, the low-fat diet group experienced a 12 percent decrease in HDL ("good") cholesterol but the moderate-fat diet group had no change. This indicates that a moderate-fat diet blunts the decrease in HDL ("good") cholesterol during weight loss.

In addition, after falling during the weight loss phase, triglycerides rose significantly during the maintenance phase for those on the low fat diet but not for those on the moderate fat diet. Elevated triglycerides are a cardiovascular risk factor.

The authors write, "The findings of this current study are significant because they demonstrate that markedly lowering total fat intakes may have adverse consequences on reductions in the risk of CVD, even in response to weight loss."


Story Source:

The above story is based on materials provided by Penn State. Note: Materials may be edited for content and length.


Cite This Page:

Penn State. "Dieters Decrease Heart Risk On Moderate Fat Program." ScienceDaily. ScienceDaily, 29 January 2004. <www.sciencedaily.com/releases/2004/01/040129071804.htm>.
Penn State. (2004, January 29). Dieters Decrease Heart Risk On Moderate Fat Program. ScienceDaily. Retrieved April 19, 2014 from www.sciencedaily.com/releases/2004/01/040129071804.htm
Penn State. "Dieters Decrease Heart Risk On Moderate Fat Program." ScienceDaily. www.sciencedaily.com/releases/2004/01/040129071804.htm (accessed April 19, 2014).

Share This



More Health & Medicine News

Saturday, April 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

'Holy Grail' Of Weight Loss? New Find Could Be It

'Holy Grail' Of Weight Loss? New Find Could Be It

Newsy (Apr. 18, 2014) In a potential breakthrough for future obesity treatments, scientists have used MRI scans to pinpoint brown fat in a living adult for the first time. Video provided by Newsy
Powered by NewsLook.com
Little Progress Made In Fighting Food Poisoning, CDC Says

Little Progress Made In Fighting Food Poisoning, CDC Says

Newsy (Apr. 18, 2014) A new report shows rates of two foodborne infections increased in the U.S. in recent years, while salmonella actually dropped 9 percent. Video provided by Newsy
Powered by NewsLook.com
Scientists Create Stem Cells From Adult Skin Cells

Scientists Create Stem Cells From Adult Skin Cells

Newsy (Apr. 17, 2014) The breakthrough could mean a cure for some serious diseases and even the possibility of human cloning, but it's all still a way off. Video provided by Newsy
Powered by NewsLook.com
Obama: 8 Million Healthcare Signups

Obama: 8 Million Healthcare Signups

AP (Apr. 17, 2014) President Barack Obama gave a briefing Thursday announcing 8 million people have signed up under the Affordable Care Act. He blasted continued Republican efforts to repeal the law. (April 17) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins