Adults who took vitamin and mineral supplements for 10 years exhibited better long-term memory skills than those who took placebos, new study results show.

Researchers followed 4,500 French men and women, with half the group taking a daily supplement that included vitamins C and E, selenium, zinc, and beta-carotene, and half of the group taking placebo pills.

The groups performed similarly on most memory tests, but the nutrient-taking group did better on long-term memory exercises.

The study was published in The American Journal of Clinical Nutrition.