Hi CHers -- an odd question for you. I have been using Naturalife pine nuts in pesto and on soups and have realized over a few months that every time I eat them, a few days later I develop a bitter and unpleasant taste in my mouth every time I eat. Worried about this, I Googled bitter taste in mouth and found a TON of postings about pine nuts and this phenomenon -- very strange. One even mentioned the aforementioned brand. Has anyone else experienced this? I have read that it is caused by specific pine nuts from China which are not oxidized. The Naturalife nuts don't say where they are from unfortunately.