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The Athlean X Jacked program is a popular workout and nutrition plan created by Jeff Nippard, a certified personal trainer and fitness model. The program aims to help users achieve a lean, muscular, and strong physique.

Athlean X Jacked is a 6-week workout and nutrition program that focuses on building lean muscle mass, increasing strength, and reducing body fat. The program is designed for intermediate to advanced lifters, but beginners can also follow it with some modifications.