Toxic Foods for Dogs: Onion and Garlic vs Chocolate, Dose Table
Dogs show signs after 15-30 g of raw onion per kg, and garlic is 3-5 times more toxic than onion, with red cells breaking down 3-5 days later (Merck). Dark chocolate can cause signs from about 3.6 g/kg within 6-12 hours, more than one grape or raisin per 10 lb may harm the kidneys (tartaric acid is the proposed cause), and xylitol can drop blood sugar from about 0.1 g/kg within 30 minutes. A 17-food holiday table gives the dose, signs, timing and urgency for each.



