Label regulations require a pack date and "best by" date, but as long as you keep the acacia in a dry place where it can't be contaminated by something harmful, the acacia itself will still be just fine and effective.
Best, H
-------------------- Heather is the Administrator of the IBS Message Boards. She is the author of Eating for IBS and The First Year: IBS, and the CEO of Heather's Tummy Care. Join her IBS Newsletter. Meet Heather on Facebook!
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It won't expire in that it won't become ineffective or somehow go bad
