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.
Is your dog really a finicky eater, or could it be something else? There are many factors to consider when you notice that your dog doesn't seem to be eating as usual.
If you're suspicious, take a closer look at exactly what he's eating each day. Does he get the occasional dog treat, or is someone sneaking him extra table scraps?
When you feed your dog a balanced, highly nutritious diet, nothing else is needed. In fact, extra treats can drastically alter your dog's normal intake of dog food. It's similar to the feeling you get after eating too much candy or potato chips. Are you interested in a full meal? Neither is your dog.
IAMS™ dog foods are nutritionally balanced and specifically formulated to meet the needs of dogs in all life stages, and with different lifestyles. There are dry, canned, and pouch varieties, plus options for senior or overweight pets, puppies, and dogs with reduced activity levels. Talk to your veterinarian or an IAMS Pet Care and Nutrition Center professional for advice on what's best for your dog.
Recommended feeding amounts are shown on every package. The guidelines are general suggestions for the amount of food you should feed your dog. Every dog is different and does not need the same amount of food. Your dog's activity level and his metabolic makeup are the determining factors. Start with the amount given in the feeding guidelines. Then, add or subtract food as you observe your dog's eating habits and weight.
Portion-Controlled Feeding: Divide the daily amount and feed at specific intervals. It is important to take away all leftover food after 15 to 20 minutes. This sets a pattern for your dog to follow. The portion-controlled feeding method is recommended for giant and large breeds as well as for overweight dogs. Portion control also works well for dogs with special needs.
Free-Choice Feeding: Feed the daily amount and let your dog eat at leisure. This method is recommended for use only with dry foods. Remember, dogs eat to meet their energy requirements. They quickly define their own daily portions when eating free-choice.
Water: Regardless of which food you choose to feed, your dog must have plenty of fresh, clean water. A good dog feeding tip is to place the water 3 to 5 feet from the food. This will help prevent your dog from gulping water and air in addition to food.
Routine: Dogs need it. Feeding at the same time and place every day establishes a comfortable eating pattern.
The Veterinarian: Regular visits help keep your dog happy and healthy!