Kids With High IQs Grow Up to Be Vegetarians

One expert said the findings aren't the whole answer, however.

"This study left many unanswered questions such as: Did the vegetarian children grow up in a household with a vegetarian parent? Were meatless meals regularly served in the household? Were the children eating a primarily vegetarian diet at the age of 10?" said Lona Sandon, an assistant professor of clinical nutrition at the University of Texas Southwestern Medical Center at Dallas.

"In addition, we don't know the beliefs or attitudes of the parents of the children, nor do we know if there was a particular event that led these children to becoming vegetarian in their teens or adulthood," Sandon said.

As the study showed, more women than men chose a vegetarian diet, Sandon noted. "Other research shows that women in general will focus more on their health than men. So, if they believe that a vegetarian diet will have health benefits, they are more likely to follow it," she said.

Given these factors, "we cannot draw any solid conclusions from this research," Sandon added.

Another expert agreed that a vegetarian diet is healthy.

"The evidence linking vegetarianism to good health outcomes is very strong," said Dr. David L. Katz, the director of the Prevention Research Center and an associate professor of public health at the Yale University School of Medicine.

"Studies, for example, of vegetarian Seventh-Day Adventists in California suggest that they have lower rates of almost all major chronic diseases, and greater longevity, than their omnivorous counterparts," Katz said. "Evidence is also strong and consistent that greater intelligence, higher education, and loftier social status -- which tend to cluster with one another -- also correlate with good health."

More information

There's more on vegetarian diets at the U.S. Department of Agriculture.

SOURCES: Catharine Gale, Ph.D., senior research fellow, MRC Epidemiology Resource Centre, University of Southampton, Southampton General Hospital, Southampton, U.K.; Lona Sandon, R.D., assistant professor of clinical nutrition, University of Texas Southwestern Medical Center, Dallas; David L. Katz, M.D., M.P.H, director, Prevention Research Center, associate professor of public health, Yale University School of Medicine, New Haven, Conn.; Dec. 15, 2006, online edition,British Medical Journal