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

@article{Hampton2013CacogeusiaFP,
  title={Cacogeusia following pine nut ingestion: a six patient case series.},
  author={Rachael Louise Hampton and Crispian Scully and Shan Gandhi and Judith E Raber-Durlacher},
  journal={The British journal of oral & maxillofacial surgery},
  year={2013},
  volume={51 1},
  pages={e1-3}
}
This is a retrospective case series of 6 patients complaining of a bad taste (cacogeusia) specifically metallogeusia, following the ingestion of pine nuts.(1) The taste arose always within 48h of ingestion, and in all but one patient spontaneously resolved within 14 days. Pine nuts also have a potential for triggering anaphylaxis.(2).