TLDR: You can fix diastasis recti in men naturally, without surgery. The Tupler Technique® is a 4-step program that teaches you how to heal your separated abdominal muscles and strengthen your core from the inside out, providing a permanent, natural solution. For men who want to fix their diastasis recti, the idea of surgery can be daunting. The good news is that there is a natural, non-surgical way to heal your core. The Tupler Technique® is a proven program that teaches you how to fix your diastasis recti naturally. This article will show you how.