That sweet, crunchy campfire classic? It began as a 19th-century health food meant to curb your cravings—all of them.

Meet Sylvester Graham, a Presbyterian minister who believed diet shaped not just your health, but your morals. He preached bland, vegetarian meals to promote purity and self-control.

His original Graham cracker? A plain, unsweetened biscuit made from whole wheat flour—designed to tame appetites and keep people virtuous.

Today’s sugary version is a far cry from Graham’s vision, but its roots lie in one man’s quest for clean living—crunch by crunch.