Can dogs eat peanut butter?
Safe. Yes, provided it contains no xylitol. Check the label every time, because some brands sweeten with it.
How much is dangerous?
Plain peanut butter has no toxic principle. The entire risk is the sweetener: xylitol causes hypoglycemia in dogs from roughly 0.1 g/kg, and xylitol content is almost never printed on a label.
Why it does harm
There is no toxic principle. Peanut butter is on this list because owners ask about it, and the honest answer is that the risk is about calories, preparation or choking rather than poisoning.
What to look for
- Nothing expected from plain peanut butter beyond digestive upset if a lot is eaten
- If the product contained xylitol: weakness, staggering, collapse, tremors or seizures
What to do
- Read the ingredients before every jar, not just the first one. Brands reformulate.
- If xylitol or "birch sugar" is on the label and your dog has eaten some, call a vet immediately.
- Peanut butter is around 590 kcal per 100 g, so a generous spoonful is a meaningful share of a small dog’s day.