Marathon energy bar

Marathon was the original brand name used for the Snickers candy bar in the United Kingdom and Ireland. Introduced to provide a high-calorie chocolate snack filled with peanuts, caramel, and nougat, the brand became a cultural icon in these markets before being rebranded to Snickers in 1990 to align with the product's global identity.

Today, the Marathon name is occasionally revived for limited-edition nostalgic releases. The product remains part of the extensive portfolio of Mars, Incorporated. Manufacturing typically takes place in large-scale confectionery facilities in the United Kingdom and across Europe, following the same production standards as the standard Snickers bar.