Toxicity to pets

This plant contains saponins and polyphenolic compounds. Fagus grandiflora, a species native to North America, is much less toxic than the European variety, Fagus sylvatica. The nuts contain the highest concentration of the toxin. Small animals typically will have GI upset but severe toxicity is not expected. In grazing animals such as cattle and horses, more severe toxicity can be seen. Clinical signs in cattle can include abdominal pain, staggering, paralysis, collapse, and coma. Death can occur due to respiratory paralysis. In horses, clinical signs include rigid leg spasms, convulsions/paddling, colic, hallucinations, dilated pupils, and red gums.

Common signs to look for: 

• vomiting
• diarrhea
• abdominal pain
• incoordination
• convulsions/spasms
• collapse
• paralysis
• death