מתוך medicontext.co.il
By Suzanne Rostler
NEW YORK (Reuters Health) – Teenage vegetarians may be at greater risk of eating disorders and suicide than their meat-eating peers, according to researchers.
Their study found that adolescent vegetarians were more weight- and body-conscious, more likely to have been told by a doctor that they had an eating disorder, and more likely to have tried a variety of healthy and unhealthy weight control practices including diet pills, laxatives and vomiting. They were also more likely than their peers to have contemplated or attempted suicide.
Male vegetarians were even more likely to engage in unhealthy weight control practices, such as vomiting after eating and weighing themselves frequently, than were non-vegetarian males, report researchers in the December issue of the Journal of Adolescent Health.
The findings suggest that vegetarianism may serve as a red flag for eating and other problems related to self-image in teens, conclude Dr. Cheryl L. Perry, from the University of Minnesota, and colleagues.
"Our study indicates that adolescent vegetarians are more likely than adult vegetarians to be vegetarians for weight-control than for health reasons. Because they are so interested in weight control, they engage in a variety of behaviors that are associated with trying to lose weight, both healthy and unhealthy," Dr. Perry explained in an interview with Reuters Health.
The study found that nearly 6% of nearly 5000 urban middle- and high-school students surveyed in Minnesota reported that they were vegetarian or did not eat red meat. More than half of the vegetarians reported eating chicken, about 42% ate fish, more than 75% ate eggs and nearly 80% consumed dairy products.
Overall, semi-vegetarians, or those who ate some animal products, were more likely to engage in weight-control practices but less likely to exercise than restricted vegetarians. Semi-vegetarians, the authors suggest, may be using the diet as another form of weight control and may be a target for programs to prevent eating disorders.
All vegetarians weighed themselves more often and were more likely to say that they were dissatisfied with their bodies than were non-vegetarians. Vegetarians were also more likely to report that they cared less about being healthy although they cared more about eating healthy foods.
The results of the study show that nearly 75% of vegetarians were females and nearly half were white. The main reason for following a vegetarian diet was a desire to lose or maintain weight. Students also said they did not want to be involved in killing animals, they did not like the taste of meat, they thought vegetarianism was a healthier diet, and they wanted to help the environment.
A vegetarian diet can be more healthy than one that contains red meat, the authors note. Studies have found that adult vegetarians tend to live longer, are generally leaner and are less likely to be diagnosed with heart disease and some cancers than adults who consume animal products.
"Although adult vegetarianism has demonstrated healthful outcome, adolescent vegetarianism may be a signal that other, health-compromising attitudes and behaviors may also be adopted, particularly those related to unhealthy weight control," the study authors conclude.
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