I do 60 minutes, which is about 1000 calories burned. I've recently increased my days from 2 to 3 times a week to 5 days a week. I started back in October with 45 minutes being the highest I would do. I really had to push myself to do 60 minutes a day, since that's how I really lost the weight the first time around. I usually watch Matlock or the news while I'm on the elliptical........it really helps the time move by fast............