I may have found why vinegar seems to encourage iodine, ie chlorine and calcium both destroy the affects of iodine, and I read there are other foods not to consume as well.
The body uses chlorine to make hydrochloric acid, so perhaps the stomach see's no need to drop chlorine into the stomach if there be enough acid there, ie here comes vinegar.
Great will use vinegar from now on.
david lubbock tx.