There are tons of supplements out there that are loaded with all manner of artificial sweeteners. Some will say 'no aspartme' (nutrasweet) but will contain sucralose (splenda) or acesulfame-k (or it might say potassium instead of k). If you want to avoid this stuff, be sure you read the whole ingredients section. One brand I've found to be good is SportPharma. Its all natural and doesn't have a funny aftertaste. I've had prety good results with it too when I've been consistent with eating well and working out regularly.