Protein Shakes without sweetners?

I am just starting this whole process and I have started drinking protein shakes for breakfast to find what I like and don't like. I have always had digestive issues with aspartame and other artificial sweeteners. Has anyone found any powder that might work? I found Syntrax nectar, no flavor and artificial sweeteners. Any ideas?

Meghan

Optimum nutrition has a "Natural" line that might work -- http://www.optimumnutrition.com/products/naturally-flavored- 100-whey-gold-standard-p-202.html

I've been taste testing this one and I really like it... made a shake yesterday with it in fact: http://theworldaccordingtoeggface.blogspot.com/2014/11/post- weight-loss-surgery-menus-day-in.html it comes in vanilla and chocolate. 

I have major issues with aspartame and other artificial sweeteners as well.  Can you tolerate stevia?  I can in small quantities.  Shakology by Beach Body is good!  However, expensive.   Doterra makes a one as well.  However, I recently found Tera's Whey at my local grocery store.  It's Organic, from grass feed cows (or goats!) and it 22 grams of protein per serving.  They have several different flavors. You can check them out on Vitacost. 

Thanks guys. I also found Syntrax has a naturals line!

Beneprotien is unflavored and unsweetened.  Not much taste.  Maybe a little milky.  6 protein grams in 50 calories can add it to anything, though you want to add it to something cool and mix before heating.