D evised by Jillian Michaels, the 30-Day shred diet plan is a workout program ideal for a host of people. You may be an advanced athlete who took a break and plans on returning to peak condition ...

Michaels, founder of her own 30 Day Shred regimen, also said she doesn't think the program allows enough time for recovery, and recommends doing CrossFit just twice a week. CrossFit athletes and ...