I wanted to correct some information that was presented yesterday, raisins are extremely toxic to dogs. Therefore, they should not be dispensed/consumed. Someone on the form posted they are "toxic in large quantities", this is incorrect. Consumption of grapes and raisins can produce acute renal failure with anuria. A mycotoxin is suspected to be involved. The estimated toxic dose of grapes is 0.32 oz/kg and for raisins 11-30g/kg (per mass of the canine). The most common pathological finding is proximal renal tubular necrosis. Most symptoms of a raisin toxicity is vomiting and diarrhea. This can occur within a few hours of ingestion. Along with weakness, lethargy, increased water consumption and abdominal pain. Renal failure can occur within 48 hours. A CBC may reveal increases in BUN, creatinine, phosphorus, and calcium. Works Cited: McKnight, Katrina (February 2005). "Grape and Raisin Toxicity in Dogs" (PDF). Veterinary Technician: 135--136. Retrieved 2007-02-13. "Food Hazards: Raisins/grapes". The Merck Veterinary Manual. 2006. Eubig P, Brady M, Gwaltney-Brant S, Khan S, Mazzaferro E, Morrow C (2005). "Acute renal failure in dogs after the ingestion of grapes or raisins: a retrospective evaluation of 43 dogs (1992-2002)". Journal of Veterinary Internal Medicine 19 (5): 663--74. Sincerely, Kris Church LVT Co-Director The Richmond Ferret Rescue League [log in to unmask] http://www.RichmondFerretRescueLeague.org [Posted in FML 6509]