Can dogs eat pistachios?
The full picture
Pistachios sit in the same awkward 'not toxic but not good' zone as almonds. They're high in fat (pancreatitis risk), usually heavily salted, and can harbour the same Aspergillus mould as walnuts and pecans — though less commonly. The shells are genuinely dangerous: a dog that eats a whole pistachio (shell included) can develop intestinal blockages. If your dog steals a shelled, unsalted pistachio it's unlikely to cause an emergency, but don't share pistachios deliberately.
If your dog ate more than a safe amount
Risks to watch for
- High fat causes pancreatitis
- Shells cause blockage/choking
- Salt in most commercial pistachios
- Mould toxins possible
Safe portion size
None recommended.
Safer alternatives
- Plain unsalted peanut butter (xylitol-free)
Important: This page is general information, not veterinary advice. Every dog is different, and individual factors (age, breed, health conditions, medications) can change what's safe. If in doubt, always contact your vet — or the Animal PoisonLine on 01202 509000 in the UK.