Prism Weight Loss Program is a Christian program that says it is suitable for nonreligious people as well.

Grace Today Dieters is a support website for Christian dieters.

Thin Within is a Christian-based weight loss program established in 1975 with groups nationwide. It is based in Louisville, Ky.

Read a Jan. 4, 2013, article about the obesity epidemic in American churches.

Read a Nov. 10, 2011, article from the Huffington Post about the results of a study that showed a correlation between religious involvement and weight gain.

Read a March 25, 2011, article from NBC News about the link between attending religious events and obesity in young adults.

Visit the website of the Material History of American Religion Project to read a paper by Daniel Sack on the meanings behind the church potluck supper. See also an interview with Sack about his book, Whitebread Protestants.

Ashram Vrajabhumi is an organization in Brazil that offers resources for “simple living and high thinking” through Hindu meditation and prayer.

Armand L. Mauss, a professor emeritus of sociology and religious studies at Washington State University who now lives in Irvine, Calif., has written extensively on Mormonism. His most recent book is All Abraham’s Children: Changing Mormon Conceptions of Race and Lineage (University of Illinois Press, 2003).