Found in the blood and in the fluid that surrounds cells, sodium maintains the cellular environment and prevents cells from swelling or dehydrating. Sodium is also important for maintaining proper nerve and muscle cell function.
Meat, poultry, fish, and eggs are good sources of sodium.
Sodium also might be included in commercial pet foods in the form of table salt (sometimes listed on the ingredient panel as salt). Salt is an important palatant for animals, as well as for people.
The Association of American Feed Control Officials recommends that dry dog foods contain at least 0.3% sodium for both maintenance and to support normal growth and development. This is the minimum recommended levels.
While high sodium intake might cause increased thirst and water consumption, the extra sodium is excreted in the urine of dogs. Healthy dogs are able to consume diets with higher sodium levels than those found in most commercial pet foods without increased blood pressure or gain in body water.
Therefore, the sodium level in commercial pet foods is not a cause for concern in healthy animals.

A veterinarian might recommend decreasing a dog's sodium intake if the animal has some types of kidney, liver, or heart disease, in order to help decrease high blood pressure or the accumulation of excessive body fluid.
Although older dogs might be more likely to develop these diseases, healthy older dogs do not require a low- or reduced-sodium diet.
The sodium level in our dog foods is appropriate for a healthy dog. The sodium content in these foods is balanced in proper proportions with energy, other minerals, vitamins, fats, proteins, and carbohydrates.
Dogs love to chew on things. In fact, chewing is a natural canine behavior. Providing appropriate chew treats and chew toys can be rewarding for the dog and might prevent or eliminate possible destructive chewing behavior. Chewable treats/toys are designed to provide that important natural chewing activity that dogs love. If the chew treat/toy has other benefits, such as oral care, that's even better.
Make enjoying chew treats and chew toys a safe and healthy activity with these tips:
Tip #1: There is some risk of digestive-tract obstruction with any type of chew treat or chew toy. Safety is always a concern when a dog chews. Many natural objects, such as sticks, rocks, and bones, can get stuck in a dog’s throat or intestine. As a dog owner, you are ultimately responsible to monitor your dog closely to make certain that the chew treat is chewed well.
Tip #2: Chew treats and chew toys should be sized appropriately for your dog. In other words, your dog should not be given a chew treat/toy that could be swallowed whole. Packages should indicate the appropriate size dog for the chew treat/toy. If in doubt, ask your retailer or contact the manufacturer.
Tip #3: Observe your dog playing with the chew toy or eating the chew treat. With the chew treat, your dog should gnaw on it with the side teeth and swallow pieces of the edible chew. Because dogs don't have the same crushing molars that humans have, they will “slice” off pieces with the side teeth. Many dogs will hold the treat in their paws or simply move it from side to side in their mouth as they chew off small pieces.
Tip #4: If your dog has a history of ingesting foreign objects such as rocks, sticks, or toys, you might not want to give him or her chew treats/toys at all. Try edible biscuits, instead.
Tip #5: Watch for choking, excessive drooling, vomiting, poor appetite, lethargy, and abnormal bowel movements. If you notice any of these signs, seek veterinary care sooner rather than later!
Tip #6: When in doubt about what is appropriate for your dog, contact your veterinarian. He or she can offer professional advice.