I really love the flavoring of this but have recently found that I am also allergic to brewer's yeast in addition to gluten (this is apparently not uncommon for those with gluten allergies) and there isn't much difference (if at all) between nutritional and brewer's yeast. I unfortunately had to give this away because it was literally making me ill, but overall the taste is great and I was so bummed to find my favorite new flavoring was causing me bodily harm. Gave it to a co-worker who says she loves it, she's a big fan of the quality.