FYI - I found 100% Whey Protein Isolate - unflavored....
Well, it says natural flavor not unflavored. It does have a bit of vanilla in it but I thought it tasted nutty. I found it at Harvest Heath Foods in Cascade. They had several different types with 100% Whey Protein Isolate (99% undenatured - don't know what that means.) It is a bit expensive $19.79 for 12.3 oz. Wheat & Gluten Free. Fat Free & Lactose Free. 20g protein per serving. Some of the other flavors were on sale. I got just the whey, but they had Berry & Whey, Hemp & Whey, Yam & Whey, Greens & Whey and maybe a couple of others all put out by Biochem. I asked what the difference and was told that other minerals or vitamins are in the others. Probably more fiber in the Greens & Whey - stuff like that. The just Whey is the only one that comes natural flavor. All the types had different flavors and most also had sample packets for like $2.25.