Does Wal-Mart refund the cost of packaged food that has been opened due to an food intolerance, I have the receipt of purchase? Thanks

Typically they do. Walmart is pretty forgiving on refunds and returns except where precluded by state law.

I would approach the manager of the store about it if there's any difficulty in returning the purchase typically they are pretty good about returns.

Don't know never had to do it

As I know as far as k n o w

No they do not