I think i poisoned myself last week. i was walking down a old logging road on an empty stomach with a empty water bottle so i was getting dehydrated and stopped to chew on a hand full of salmon berries so my mouth wasn't so dry. an hour latter my stomach was cramped, i broke into a cold sweet, was getting light headed and threw up a bunch of bile and seeds then curled up in bed shivering for 30 min.
apparently when i crushed up all the seeds and ate them on a empty highly acidic stomach they released enough HCN for my body to react to. it seams all fruit seeds can release varying amounts of HCN with apple seeds having enough HCN for a cup of dried seeds to be a lethal dose. and yes im sure i know what salmon berries look like.