Yes, they are ok to use but as a restricted item since they have 18g of carbs.
Started IP 06-30-11 @250lbs - Started alternatives mid Oct. 2011 - Stopped on Christmas 2011 (biggest mistake of my life) Lost 50lbs by then. Gained back all the weight I lost + 20 more lbs after IVF in 2013.
Many re-starts failed miserably. I stopped IP as I wasn't sticking to the plan but always try to re-start.