The Seventh-day Adventists present a health message that recommends vegetarianism and expects abstinence from pork, shellfish and other foods proscribed as "unclean" in Leviticus. A number of the founders of the Seventh-day Adventist Church, including Joseph Bates and Ellen White adopted a vegetarian diet during the nineteenth century, and Ellen White reportedly received visions regarding the health benefits of a vegetarian diet. More recently, members of the Seventh-day Adventist Church in California have been involved in research into longevity due to their healthy lifestyle, which includes maintaining a vegetarian diet. This research has been included within a "National Geographic" article. Another denomination with common origin, the Seventh Day Adventist Reform Movement recommends vegetarianism as a part of fellowship, with many of its members being practicing vegans as well. Typically, however, these sabbatarian pro-vegetarian Christian fellowships do not "require vegetarianism as a test of fellowship."