I have no complaints about quality of this product. The nutritional value of this Brewers Yeast is outstanding but it has an awful aftertaste to me. I had a difficult time getting it down. Masking it with protein and stevia helped a lot. Still the aftertaste was really off putting despite what it says. So in this case, that's what you get when nothing is added. I still wouldn't discourage someone from trying it. Maybe you won't mind the aftertaste or won't mind being a little creative to disguise it. For me though it was too overwhelming. So I wouldn't buy again.