On April 1, a fan account for the burger joint said the company would use beef tallow for cooking, instead of seed oils.

An April Fools’ Day prank that claimed the popular fast-food chain In-N-Out was making a change to how it prepares its food appears to have fooled the White House.

In-N-Out confirmed they're not switching to beef tallow for fries despite an April Fools' joke claiming otherwise.

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White House duped by April Fools’ tweet about In-N-Out ingredient changes - A fan of In-N-Out jokingly claimed the company was switching to 100 percent beef tallow on April 1 ...