I called Annie's yesterday and talked to the cust. rep. It bugs me that they still stand by their statement on the front of the box that says "no icky additives". The cust. rep said yeast extract is not an additive and it's "like adding salt". He also said some rather snotty things to me. At any rate, I wasn't going to argue with him, I just asked him to record my wishes that Annie's change their formula to remove yeast extract from all their products. And I informed him that I would do my part to let everyone else know about this. It's a very deceptive practice, IMO.
Anyway, if you agree, maybe you could call Annie's or write on their website to ask them to remove yeast extract from their products.
My son is going to miss his bunnies. And now I have to find another little snack item. Just makes me sick to know that I let him eat those for so long.