There’s no doubt dogs are affectionate creatures. And they have numerous ways of showing it. So what’s the deal when your furry friend comes up and gives you a big ol’ pooch smooch? Let’s take a tongue-in-cheek look into why.

Dogs are oral creatures and gather a lot of information about their surroundings through taste and smell. Maybe you’re salty after a sweaty run. Maybe you’ve got barbecue sauce on your face. “Dogs can smell a lot better than we can,” says Opens a new windowDr. Jo Gale, BVetMed CertLAS MRCVS, Senior Manager, Global Science Advocacy at Waltham Petcare Science Institute, “so they find a lot more things interesting to lick than we can.” This despite the fact dogs only have about 1,700 taste buds compared to around 9,000 in humans.
In a poll* of dog owners, IAMS™ found a large majority (75%) believe dogs lick people to offer friendliness. That’s definitely a correct assumption. Licking has been a social behavior among dogs since the days of great-great-great granddaddy wolf. 'It’s a standard canine greeting to lick others around the face,” agrees Opens a new windowJames Serpell, B.S., Ph.D., Professor of Humane Ethics & Animal Welfare at the University of Pennsylvania School of Veterinary Medicine. “Junior members of the pack will run around and lick the mouths of more senior members.” Your dog considers you part of their pack, so it’s their way of greeting and welcoming you. Or maybe you still have that barbecue sauce on your face.
In ancient Greece, dogs at the shrine of Asclepius were trained to lick patients. In the Middle Ages, Saint Roch was said to have been cured of a plague of sores through his dog’s licks. The French even have a saying, “langue de chien, langue de médecin,” which translates to, “a dog’s tongue, a doctor’s tongue.”

Don’t cancel your health insurance just yet. While dogs’ saliva does have some possible bactericidal properties against some types of bacteria, it can put you at the risk of exposure to others. Too much licking can also reopen the wound and cause further infection. With modern medicine, you’re much better off hitting the first-aid kit.
And that myth about dogs’ mouths being cleaner than humans’? Not true — both contain over 600 types of bacteria. You’re welcome for that image.
While an occasional canine kiss is “aww”-inducing, some dogs can overdo it to the point of annoyance. When this happens, the best thing to do is “completely ignore it and give no attention,” suggests Dr. Jo Gale. “When they stop, provide them with attention.” Over time your dog will learn to scale back on the smooches.
*Surveyed U.S. dog owners, age 18+
Sample Size: n=201
Fielded May 8-10, 2020
Between 25 and 40% of dogs are overweight, but often, owners don't know it until they take their dog to the veterinarian for another reason. Yet, even veterinarians can't tell if a dog is fat just by its weight. Ideal weight varies by breed, and quite widely within breeds. There's no ideal weight chart for all dogs!
You can judge your dog's condition by placing your hands on each side of his rib cage. Are the ribs protruding? Your dog may be too thin. Can you feel individual ribs easily, and is your dog's abdomen slightly tucked up when viewed from the side? That's the sign of ideal weight. If you can't feel the ribs easily, your dog has no waist, and his abdomen drags, he's too fat. Your veterinarian can help you further evaluate your dog's weight.
Before beginning any weight loss program with your dog, discuss it with your veterinarian.
You can begin your dog's weight-loss program by reducing caloric intake by 25% of his maintenance intake, and then decrease it by 10% increments every two to three weeks until a 1% weight loss per week is achieved. This means that, if your dog weighs 15 pounds, a 1% loss would be about 2-1/2 ounces.
If you feed one large meal a day or keep food available at all times, try dividing the daily ration into several small meals (at least two meals a day) and pick up what has not been eaten 30 minutes after each meal.
Dogs gain weight for the same reason that people do—they eat more calories than they use. Today's dogs share another problem with their parents: lack of activity. Most parents are gone all day and come home too tired to play with the dog.
Also, as dogs age, or after they are spayed or neutered, their metabolism might slow causing them to require less food.
Another reason for weight gain is frequent, high-calorie treats. Sometimes, more than one family member is feeding the dog, and the dog sure isn't telling!
Losing weight isn't easy. Changing habits is the key. Here are some ways you can help:
Determine who feeds the dog what and when. (Don't be embarrassed to admit you give your dog treats. Dogs are expert beggars.)
Substitute affection for treats. Give a pat or throw a ball when he noses your hand.
Take your dog for a walk more often. Even 10 minutes a day can help.
Feed him more often. It takes energy to digest food. Dividing your dog's daily ration into two or three feedings will help.
Reducing your dog's regular food amount by 25% should bring results.
If your dog is more than 15% overweight, your veterinarian might recommend a special food. Diet foods should be low in fat (under 20% of calories from fat).
Your goal is to help your dog be healthier, so select his food carefully. Some diet foods just add fiber to help the dog feel full. This can result in reduced digestibility, large stool volume, frequent trips to the backyard, and decreased skin and coat condition because the dog isn't getting enough fat and nutrients.
Find a food, such as IAMS™ ProActive Health™ Adult Healthy Weight, that has normal fiber levels to keep your dog's digestive system working properly. It should have high-quality protein so your dog doesn't lose muscle tone and essential fatty acids to help keep his skin flexible and coat glossy throughout the dieting process. After your dog reaches ideal weight, select a maintenance food to keep weight steady.'