I've just realized that the whey powder I use contains acesulfame k. I'm 5 days into my prep phase and I'm just trying to cover all of my bases and make sure I do this right. I was really excited to get into CBL so I started my prep phase a few days before buying the book. During the prep phase I've been using this whey powder in my AM accelerator and also having a scoop and a half with creatine post workout and a scoop before bed with some peanut butter. Do I need to start over? Sorry if it's a lame question.