In 2021, 42 owls in the UK died after receiving a vitamin supplement which erroneously contained 1000x the intended amount of Vitamin B6 (pyridoxine).
Toxicology analyses traced the error to a Japanese firm, Asuka Animal Health Ltd, which had intended to replicate MVS-30, an original avian supplement made by the UK firm, VIDEX Ltd. The original formulation had erroneously listed the vitamin B6 content as “360gm”, instead of “360mg”. This labelling error resulted in a 1000-fold dose of vitamin B6 manufactured, leading to fatal neurological toxicity in the unfortunate owls.