Friday, June 25, 2010

Position of the American Dietetic Association: vegetarian diets


J Am Diet Assoc. 2009 Jul;109(7):1266-82.

Position of the

American Dietetic

Association: vegetarian

diets.

Craig WJ, Mangels AR; American

Dietetic Association

Andrews University, Berrien Springs, MI, USA.


It is the position of the American Dietetic Association that appropriately planned vegetarian diets, including total vegetarian or vegandiets, are healthful, nutritionally adequate, and may provide health benefits in the prevention and treatment of certain diseases. Well-planned vegetarian diets are appropriate for individuals during all stages of the life cycle, including pregnancy, lactation, infancy, childhood, and adolescence, and for athletes. A vegetarian diet is defined as one that does notinclude meat (including fowl) or seafood, or products containing those foods. This article reviews the current data related to key nutrients for vegetarians including protein, n-3 fatty acids, iron, zinc, iodine, calcium, and vitamins D and B-12. A vegetarian diet can meet current recommendations for all of these nutrients. In some cases, supplements or fortified foods can provide useful amounts of important nutrients. An evidence- based review showed that vegetarian diets can be nutritionally adequate inpregnancy and result in positive maternal and infant health outcomes. The results of an evidence-based review showed that a vegetarian diet is associated with a lower risk of death from ischemic heart disease. Vegetarians also appear to have lower low-density lipoprotein cholesterol levels, lower blood pressure, and lowerrates of hypertension and type 2 diabetes than nonvegetarians. Furthermore, vegetarians tend to have a lower body mass index and lower overall cancer rates. Features of a vegetarian diet that may reduce risk of chronic disease include lower intakes of saturated fat and cholesterol and higher intakes of fruits, vegetables, whole grains, nuts, soy products, fiber, and phytochemicals. The variability of dietary practices among vegetarians makesindividual assessment of dietary adequacy essential. In addition to assessing dietary adequacy, food and nutrition professionals can also play key roles in educating vegetarians about sources of specific nutrients, food purchase and preparation, and dietary modifications to meet their needs.

Americans

Eat Themselves To Death

Government: Obesity, Inactivity Nearly As Deadly As Tobacco In U.S.


By Bootie Cosgrove-Mather AP) Inactive Americans are eating themselves to death at an alarming rate, their unhealthy habits fast approaching tobacco as the top underlying preventable cause of death, a government study found.

In 2000, poor diet including obesity and physical inactivity caused 400,000 U.S. deaths - more than 16 percent of all deaths and the No. 2 killer. That compares with 435,000 for tobacco, or 18 percent, as the top underlying killer.

The gap between the two is substantially narrower than in 1990, when poor diet and inactivity caused 300,000 deaths, 14 percent, compared with 400,000 for tobacco, or 19 percent, says a report from the federal Centers for Disease Control and Prevention.

"This is tragic," said Dr. Julie Gerberding, CDC's director and an author of the study. "Our worst fears were confirmed."

"It's going to overtake tobacco" if the trend continues, Gerberding said. "At CDC, we're going to do everything we can to prevent it," she said. "Obesity has got to be job No. 1 for us in terms of chronic diseases."

The researchers analyzed data from 2000 for the leading causes of death and for those preventable factors known to contribute to them. Like tobacco, obesity and inactivity increase the risks for the top three killers: heart disease, cancer and cerebrovascular ailments including strokes. Obesity and inactivity also strongly increase the risk of diabetes, the sixth leading cause of death.

The results appear in Wednesday's Journal of the American Medical Association.

U.S. Department of Health and Human Services officials discussed the findings Tuesday at a Washington news briefing where they announced a public service ad campaign using humor to get Americans to pay attention to the dangers of inactivity and obesity.

"I am working very hard at CDC to walk the talk," Gerberding said in a telephone interview, noting efforts the agency has made at CDC offices to improve the health of its 9,000-plus employees.

They include putting music, lights and fresh paint jobs in stairwells to encourage employees to use the stairs for exercise. Also, besides the current indoor smoking ban, CDC will ban smoking from outside all of its buildings starting later this year.

In order, the leading causes of death in 2000 were: Heart disease, cancer, strokes and other cerebrovascular disease, chronic lower respiratory disease, unintentional injuries, diabetes, influenza and pneumonia, Alzheimer's disease, kidney disease, and septicemia.

The underlying preventable causes of death were, in order: tobacco, poor diet and physical inactivity, alcohol, microbial agents, toxic agents, motor vehicles, firearms, sexual behavior and illegal drug use. Together, these accounted for about half of all 2.4 million U.S. deaths in 2000.

An editorial accompanying the study in JAMA says national leadership and policy changes are needed to help curb preventable causes of death.

"After all, wisdom is knowing what to do next. Virtue is doing it," said editorial authors Drs. J. Michael McGinnis and William Foege. McGinnis is with the Robert Wood Johnson Foundation and Foege is with the Bill and Melinda Gates Foundation.
http://www.cbsnews.com/stories/2004/03/09/health/main604956.shtml

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