Can dogs eat soy sauce?
✓ Reviewed against PDSA, Blue Cross & Animal PoisonLine guidance · Last updated: 2026-06-17
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The full picture
Soy sauce is one of the saltiest common kitchen ingredients — around 900 mg of sodium per tablespoon. A single tablespoon can cause symptoms of salt toxicity in a small dog, and larger amounts can be genuinely dangerous. Asian takeaways often contain enough soy sauce to cause issues. A few drops licked from a plate probably isn't an emergency, but make fresh water available and monitor. Low-sodium soy sauce is still salty enough to be problematic. Tamari, oyster sauce, teriyaki sauce, and fish sauce all have the same warning.
Check individual ingredient safety at 247IngredientsCheck.
If your dog has already eaten soy sauce
Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 if your dog consumed a significant amount. Monitor for vomiting, diarrhoea, lethargy, and loss of appetite. Bring the packaging or a description of the product to any vet visit.
Risks to watch for
- Salt poisoning
- Excessive thirst and urination
- Tremors and seizures in severe cases
- Kidney strain
Safe portion size
None.
Safer alternatives
- Plain cooked meat
Does size or breed matter?
Risk with soy sauce scales with the quantity relative to body weight, so small and toy breeds reach a meaningful dose from a much smaller amount than large dogs. Always check for hidden risk ingredients (garlic, onion, xylitol, excess salt) in any prepared or shop-bought version rather than assuming the plain ingredient name on the label tells the whole story.