Gout:

One reader urges caution about last week’s suggestion to eat salicylate-rich fruits such as cherries as this may interact with the warfarin our reader was also taking. At the very least it may have the same effect as the drug, and could cause an excessive thinning of the blood. There’s a similar concern about the recommendation to take cider vinegar, which could also interact with warfarin. A reader knows of one case where someone started suffering from nausea and a lack of appetite when he was taking cider vinegar for an arthritic neck.