THURSDAY, March 6 (HealthDay News) -- Soaking potatoes in water before frying cuts down on the formation of the suspected carcinogen acrylamide, says a a new, British study.

Acrylamide is created when starch-rich foods are cooked at high temperatures, such as frying, baking, grilling or roasting, according to background information in the study. Some research has suggested that acrylamide, which is found in a wide range of foods, may be harmful to health and may cause cancer in animals.

In this study, researchers found that simply soaking potatoes before frying can significantly reduce the formation of acrylamide and any health risks it may pose.

The researchers tried three different approaches. They washed raw French fries, soaked them for 30 minutes, and soaked them for two hours. This reduced acrylamide levels by up to 23 percent, 38 percent and 48 percent, respectively, but only if the fries were cooked to a light color.

It's not clear whether the same reductions could be achieved if French fries are cooked to a deep, dark brown, the researchers said.

The study was published in the current issue of the Journal of the Science of Food and Agriculture.

"There has been much research done by the food industry looking at reducing acrylamide in products but less so on foods cooked at home, and we wanted to explore ways of reducing the level of acrylamide in home cooking," team leader Rachel Burch, of Leatherhead Food International, said in a prepared statement.

More information

The National Cancer Institute has more about acrylamide in foods.

WEDNESDAY, March 5 (HealthDay News) -- Mice given the weight-loss drug rimonabant became resistant to alcohol's fat-building effects in the liver, which suggests the medication may help fight alcoholic fatty liver in humans, says a U.S. study.

Alcoholism is the leading cause of liver disease in Western societies, according to background information in the study.

Rimonabant, which blocks cannabinoid receptors, is approved for weight loss in several European countries but has not been approved in the United States. Last June, a U.S. Food and Drug Administration panel recommended that rimonabant should not be given the FDA's blessing because of continuing concerns about increased risks for suicidal thoughts among some users.

In this latest study, the researchers found that mice fed a low-fat diet and ethanol showed an increase in the gene encoding the CB1 cannabinoid receptor and in liver levels of an endocannabinoid called 2-arachidonoylglycerol (2-AG). These mice developed fatty livers.

Another group of mice that received the same diet plus rimonabant did not differ from mice fed a control diet. And mice lacking CB1 receptors, either throughout the body or only in the liver, were protected from alcoholic fatty liver.

"What makes these findings particularly interesting from our perspective is that they may have practical implications," said study author George Kunos, of the U.S. National Institute on Alcohol Abuse and Alcoholism. "Treatment of animals with a [cannabinoid receptor] antagonist largely prevented alcohol's effect. It suggests that the development of fatty liver in those who use alcohol could be interfered with, or perhaps reversed, with such treatment."

The findings were published in the March issue of Cell Metabolism.

"Although alcoholic fatty liver is reversible in the early stages by cessation of drinking, this is often not feasible," the study authors wrote. "The present findings suggest that treatment with a CB1 antagonist may slow the development of fatty liver and thus prevent its progression to more severe and irreversible forms of liver disease."

Drugs that selectively act on CB1 receptors found outside of the brain might help fight fatty liver with less risk of side effects such as anxiety and depression, they said.

"Rimonabant has recently been introduced in Europe for the treatment of visceral obesity and the metabolic syndrome, which themselves are known risk factors for [liver disease]. Clinical trials testing the effectiveness of CB1 receptor blockers in the treatment of both alcoholic and nonalcoholic fatty liver and their more severe sequelae may be warranted," the researchers concluded.

More information

The American Liver Foundation has more about fatty liver  .

MONDAY, March 3 (HealthDay News) -- Cutting kids' TV and computer time by half reduced the amount of food they ate and helped them lose weight, a new study found.

The finding offers hope to the problem of childhood obesity in the United States, where an estimated 16 percent of children ages 6 to 19 years old are overweight, a 45 percent increase in one decade, according to federal researchers.

"Television viewing is related to consumption of fast food and foods and beverages that are advertised on television," the study authors said in a prepared statement. "Viewing cartoons with embedded food commercials can increase choice of the advertised item in preschoolers, and television commercials may prompt eating."

The findings are published in the March issue of the Archives of Pediatrics & Adolescent Medicine.

For the study, Leonard H. Epstein, a professor in the department of pediatrics and social and preventive medicine at the University at Buffalo, the State University of New York, and his colleagues studied 70 overweight children, aged 4 to 7, who watched TV or played computer games for at least 14 hours a week.

The researchers installed a monitoring device on each television and computer the child used; the device allowed for the reduction of the children's weekly screen time by 10 percent a week until a 50 percent reduction had been reached. Each family member was given a unique code to activate the TV or computer. In addition, the kids received such incentives as money and stickers to spend less time with TVs or computers.

The other overweight children had no restriction on their use of TVs or computers.

Epstein's team found that the children who had no restrictions on their computer or TV use reduced their TV watching or computer-games playing by 5.2 hours a week. But the kids with restricted use cut their TV and computer time by 17.5 hours a week.

And, the children with restricted TV and computer time lost more weight than the other children. However, the researchers found no difference between the two groups in terms of physical activity.

"Using technology to modify television viewing eliminates parental vigilance needed to enforce family rules and reduces the disciplinary action needed if a child exceeds his or her sedentary behavior limits," the authors concluded. "Perhaps most important, the device puts the choice of when to watch television in the child's control, as opposed to a rule such as 'no television time until homework is completed.'"

Dr. David Katz, director of the Yale University School of Medicine Prevention Research Center, said the study, "shows the upside to this ominous mix -- reducing screen time can help prevent childhood obesity by several mechanisms. Less screen time may be even more important to dietary pattern than to physical activity pattern. But by either means, the ends here are encouraging and highlight the importance of this strategy."

More information

For more on childhood obesity, visit the American Academy of Pediatrics  .

MONDAY, March 3 (HealthDay News) -- For teens looking to keep weight off, it doesn't have to be a breakfast of champions, but it should be some kind of breakfast -- and preferably a healthy one.

Yet another study is confirming that adolescents who skip breakfast have a higher risk of being overweight.

"There's a pretty significant inverse association between how frequently kids report eating breakfast and how much weight they gain over time, and we took into account other dietary factors and physical activity," said Mark Pereira, co-author of the study, published in the March issue of Pediatrics.

"It's interesting to note that the kids who eat breakfast on a daily basis overall have a much better diet and are more physically active," Pereira said.

Added Dr. Peter Richel, chief of pediatrics at Northern Westchester Hospital Center in Mount Kisco, N.Y.: "Grandma and Mom are right. When we skip breakfast, especially in the teenage years, then kids tend to snack and graze."

More than one-third of teens aged 12 to 19 are now overweight or at risk of becoming overweight. And over the past two decades, the proportion of children who are overweight has doubled; among teens, the proportion has tripled, according to background information with the study.

An estimated 12 percent to 34 percent of children and adolescents skip breakfast on a regular basis, a number that increases with age. Previous studies have linked breakfast skipping with a greater tendency to gain weight.

"There has been quite a lot of published scientific literature already on the relationship between breakfast habits in both children as well as adults and obesity risk," said Pereira, an associate professor of epidemiology and community health at the University of Minnesota School of Public Health. "It's pretty darn consistent in the literature that people who eat breakfast are at lower risk for obesity, but most of those studies have some methodological limitations."

The new study was both cross-sectional and prospective -- moving forward in time. More than 2,000 adolescents were followed for five years. Participants completed detailed surveys on their eating patterns and also provided information on their height, weight, body-mass index and physical activity.

The more often a person ate breakfast, the less likely he or she was to be overweight or obese.

"We can't make definitive statements about cause and effect," said Pereira. But the evidence seems to point that way, he added.

"What happens is that total fat and saturated fat as a percentage of total daily energy were lower in the breakfast eaters compared with breakfast skippers," Richel explained. "This really shows that we have the potential to improve energy balance and weight control with healthy breakfast consumption. We're not talking pop-tarts."

In another Pediatrics article, researchers reported that an Internet-based program helped keep teens' weight in check over the short term and also reduced binge eating. Those who participated in the program also had less concern about their weight and shape, compared with teens who did not participate, suggesting that the program may lower the risk for eating disorders.

The 16-week program included education, behavioral modification, journaling, discussion and motivational messages.

More information

The U.S. Centers for Disease Control and Prevention has more on childhood overweight and obesity.