Cacogeusia following pine nut ingestion: a six patient case series.

This is a retrospective case series of 6 patients complaining of a bad taste (cacogeusia) specifically metallogeusia, following the ingestion of pine nuts. The taste arose always within 48 h of ingestion, and in all but one patient spontaneously resolved within 14 days. Pine nuts also have a potential for triggering anaphylaxis.