Preschool children in rural areas eat more fruits and vegetables when the produce is homegrown.

"It was a simple, clear finding," said Debra Haire-Joshu, Ph.D., director of Saint Louis University's Obesity Prevention Center and a study author. "Whether a food is homegrown makes a difference. Garden produce creates what we call a ,positive food environment."

Researchers interviewed about 1,600 parents of preschool-aged children who live in rural southeast Missouri. They found that preschool children who were almost always served homegrown fruits and vegetables were more than twice as likely to eat five servings a day than those who rarely or never ate homegrown produce.

The American Dietetic Association recommends between five and 13 servings of fruits and vegetables a day.

In addition, children who grow up eating fresh-from-the-garden produce also prefer the taste of fruits and vegetables to other foods, the parents told researchers.

The study, in the April issue of the Journal of the American Dietetic Association, found the garden-fed children were more likely to see their parents eating fruits and vegetables.

A greater variety of fruits and vegetables , more tomatoes, cantaloupe, broccoli, beans and carrots , also were available in the homes of families who nearly always had homegrown produce.

The implications of the research are important because they point to a simple way of getting kids to eat healthier, Haire-Joshu said. Plant a garden or encourage your school to do so.

"When children are involved with growing and cooking food, it improves their diet," Haire-Joshu said. "Students at schools with gardens learn about math and science and they also eat more fruits and vegetables. Kids eat healthier and they know more about eating healthy. It's a winning and low-cost strategy to improve the nutrition of our children at a time when the pediatric obesity is an epidemic problem."

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For example, Dr. Joseph M. Betz was a recent guest lecturer in Talcott's class. Betz is the director of the Dietary Supplement Methods and Reference Materials Program Office of Dietary Supplements at the National Institutes of Health in Bethesda, Md. He discussed Food and Drug Administration rules as to the differences between foods and drugs and how each must be labeled. With regard to herbal supplements, this can sometimes be a little tricky, he said.

During the question and answer period at the end of his talk, one of the students asked about a recent study on antioxidants. According to news reports, the study seemed to find that antioxidants , especially vitamins A and E, don't have the beneficial properties they are thought to have and may even increase mortality.

Talcott offered this clarification in regard to the study: "This study statistically analyzed many different clinical studies with vitamins A, E (and) C, beta-carotene and selenium. The performed statistical analysis indicated that vitamin A and E and beta-caraotene may increase mortality in some of the selected studies. The meaning of this study currently is being discussed."

The study looked at synthetic antioxidants, she said, which are not the same compounds that she is researching.

"Even though we still have a lot to learn about the efficacy, safety and dosing recommendations for herbal supplements and antioxidant foods, we can be confident to recommend a healthy balanced diet according to the food-pyramid rich in fresh fruits and vegetables. I also would not see a problem with the intake of reasonable amounts of standardized high-quality antioxidant dietary supplements," she said

"It is my long-term goal to see science-based intake recommendations developed for those herbal plant compounds which have a proven potential in the promotion of health and prevention of chronic disease."

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