I was investigating a few of the artificial sweeteners used in low-carb protein powders after hearing how bad aspartame supposedly is. I looked at two brands I’ve used over the past month. Optimum 100% whey, and EAS simply whey are sweetened with acesulfame-potassium and aspartame, respectively. Has anyone heard about one being any safer than the other? Also, for curiosity what is the Biotest stuff flavored with?