Can dogs eat salt?
Toxic. Not in quantity. Large amounts of salt cause hypernatremia, and Merck reports increasing cases in dogs from acute salt consumption.
Call a vet or a poison line now.
There is no calculator for salt because no reliable dose threshold is published. A vet or poison control line can judge the risk from what was eaten and your dog's weight.
If it has already been eaten
Your own vet, or the nearest 24-hour emergency animal hospital.
ASPCA Animal Poison Control Center: (888) 426-4435
Pet Poison Helpline: (855) 764-7661
Have ready: your dog's weight, the exact product and how much was eaten, and the time it happened.
How much is dangerous?
Merck gives no single canine threshold, and stresses that the outcome depends on water availability as much as the dose. The practical sources are homemade salt-dough ornaments, drinking sea water, and large volumes of salty snacks.
Why it does harm
Excess sodium raises plasma sodium faster than the body can compensate. Merck notes that salt toxicosis is unlikely while sodium-regulating mechanisms are intact and fresh water is available, which is why access to water matters as much as the salt itself.
Sources
What to look for
- Increased thirst and urination
- Vomiting and diarrhea
- Unsteadiness and disorientation
- Tremors and seizures in severe cases
What to do
- Call a vet. Do not withhold water, and do not flood the dog with it either — correcting sodium too fast is itself dangerous, which is why this is a veterinary decision.
- Say what was eaten and whether the dog has had free access to water since.
Common questions
Can a dog get salt poisoning from sea water?
Yes, in quantity. Merck lists seawater among the sources of excess sodium, and stresses that salt poisoning is unlikely while sodium regulation is working and fresh water is available. On a beach day, bring fresh water and keep offering it.
How is salt poisoning treated?
Slowly. Merck says there is no specific treatment: the vet controls any seizures, assesses hydration and electrolytes, and restores the normal water and sodium balance over several days, because lowering sodium too quickly can cause severe swelling of the brain.