SHRED describes the primary elements you’ll demand of your body each time you participate in a JILLIAN MICHAELS BODYSHRED™ class. JILLIAN MICHAELS BODYSHRED™ is a high intensity and endurance based 30 minute workout. Utilizing Jillian’s 3-2-1 interval approach: 3 minutes of strength 2 minutes of cardio 1 minute of abs You will shed fat, define muscle, transform the look of your entire physique, and dramatically enhance your overall health and athletic performance.