Featured Research

from universities, journals, and other organizations

Females May Be More Susceptible To Overindulge "Sweet Tooth" Cravings Than Males

Date:
September 24, 2004
Source:
American Physiological Society
Summary:
Is it possible that females are predisposed to succumb to the temptation to overeat? And could exercise be a less effective method of appetite suppression in women than in men? Researchers at The Florida State University say the answer could be yes.

BETHESDA, Md. – It is well known that obesity has reached epidemic proportions. As waistbands expand, so do the number of health gurus heralding the benefits of portion control and exercise to keep obesity at bay. But with some studies indicating that the rate of obesity is greater in women than in men, could it be that women are at a disadvantage when it comes to these obesity avoidance tactics? Is it possible that females are predisposed to succumb to the temptation to overeat? And could exercise be a less effective method of appetite suppression in women than in men? Researchers at The Florida State University say the answer could be yes.

Overeating (hyperphagia) and sedentary behavior are known risk factors for obesity, but research in these areas – especially overeating – has been studied almost exclusively in males. In the new animal study “Diet-induced hyperphagia in the rat is influenced by sex and exercise,” Lisa A. Eckel and Shelley R. Moore (The Florida State University Program in Neuroscience and Department of Psychology) found that:

* rats overate when given access to a highly palatable diet containing a greater portion of sugar than their normal diet

* when a sweet diet is freely available, female rats consumed more calories per day than male rats

* when given a chance to exercise, overeating was reduced in both sexes of rats, but

* the caloric intake reduction associated with the exercise was much less dramatic in the female rats, and

* unlike male rats, female rats exercised less when sweet foods were available than when sweet foods were not available.

The researchers concluded that female rats are more susceptible than male rats to over consume a palatable, sweetened diet, and that female rats are less likely than male rats to use exercise as a means to control appetite in the presence of such a diet.

The results of their study were published in the American Journal of Physiology – Regulatory, Integrative and Comparative Physiology (August 5, 2004 Article in Press).

Abstract

Rats increased their caloric intake when fed a diet containing greater fat or sugar than that found in regular laboratory chow. Because such diet-induced hyperphagia has been studied primarily in sedentary male rats, the researchers’ goal was to investigate the effects of gender and exercise on caloric intake of a diet (chow supplemented with a supply of liquid sweetened condensed milk), chosen for its ability to stimulate hyperphagia. Rats were housed individually in cages that provided access to running wheels. Daily caloric intake of chow alone and then chow plus sweet milk was monitored during sedentary and active conditions.

In sedentary rats (where the running wheel was blocked), chow intake was greater in males, compared to females. In other phases, wheel running produced similar decreases in chow intake in both sexes. Availability of the chow plus milk diet increased caloric intake, compared to that observed in chow-fed rats. This diet-induced hyperphagia was significantly greater in sedentary females (35.7 3.1% increase), relative to sedentary males (9.1 2.2% increase).

Wheel running decreased intake of the chow plus milk diet in both sexes. In active males, diet-induced hyperphagia was abolished and caloric intake was reduced to that observed during chow feeding. In active female rats, diet-induced hyperphagia was attenuated, but not abolished, and caloric intake of the chow plus milk diet remained greater than that observed during chow feeding. The researchers’ conclude that female rats are more vulnerable than male rats to this “sweet” form of diet-induced hyperphagia.

Source: The article “Diet-induced hyperphagia in the rat is influenced by sex and exercise” is online in the American Journal of Physiology – Regulatory, Integrative and Comparative Physiology, and is scheduled to appear in the November issue, published by the American Physiological Society. A copy of the abstract is available to the public at http://www.the-aps.org.


Story Source:

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


Cite This Page:

American Physiological Society. "Females May Be More Susceptible To Overindulge "Sweet Tooth" Cravings Than Males." ScienceDaily. ScienceDaily, 24 September 2004. <www.sciencedaily.com/releases/2004/09/040924091410.htm>.
American Physiological Society. (2004, September 24). Females May Be More Susceptible To Overindulge "Sweet Tooth" Cravings Than Males. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2004/09/040924091410.htm
American Physiological Society. "Females May Be More Susceptible To Overindulge "Sweet Tooth" Cravings Than Males." ScienceDaily. www.sciencedaily.com/releases/2004/09/040924091410.htm (accessed September 23, 2014).

Share This



More Mind & Brain News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com
Food Addiction Might Be Caused By PTSD

Food Addiction Might Be Caused By PTSD

Newsy (Sep. 18, 2014) New research shows that women who suffer from PTSD are three times more likely to develop a food addiction. Video provided by Newsy
Powered by NewsLook.com
Corporal Punishment on Decline, Debate Renews

Corporal Punishment on Decline, Debate Renews

AP (Sep. 16, 2014) Corporal punishment in the United States is on the decline, but there is renewed debate over its use after Minnesota Vikings running back Adrian Peterson was charged with child abuse. (Sept. 16) Video provided by AP
Powered by NewsLook.com
FDA Eyes Skin Shocks Used at Mass. School

FDA Eyes Skin Shocks Used at Mass. School

AP (Sep. 15, 2014) The FDA is considering whether to ban devices used by the Judge Rotenberg Educational Center in Canton, Massachusetts, the only place in the country known to use electrical skin shocks as aversive conditioning for aggressive patients. (Sept. 15) 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:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

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