Does anybody use it? Is it really unflavored? I would like to add it so some of my favorite things later on but am afraid it will change the taste or consistency.

I have used it and I do think it changes the flavor tremendously. But then again maybe the flavor varies according to what you mix it with. You may want to try it a couple times yourself to see if you like it or not. Personally, I hated it....

Unflavored just means they haven't added extra flavor like chocolate or vanilla to it. Whey protein has its own natural taste/flavor, so it is unflavored but not tasteless, if that makes sense. I found it fine to mix in small amounts with things that have their own strong flavor to cover up the taste of the whey, but overall I prefer using flavored proteins.

Thank you! That makes perfect sense! I was afraid of that

I just added a whole scoop of isopure unflavored to a can of blended Progresso chicken noodle soup and could not taste it at all.

Just an FYI, some unflavored protein, like Syntrax medical for example, becomes ineffective & loses it's nutritional value if the food you're mixing it into is too hot. It "denatures" the protein if it's over 140 degrees.