There’s no doubt that dogs are affectionate creatures. And they have numerous ways of showing it. One of these ways is by licking their owners. You may enjoy it when your furry friend comes up and gives you a big ol’ pooch smooch. But why do dogs lick you? In a poll* of dog owners, IAMS™ found a large majority (75%) believe dogs lick people to offer signs of friendliness. That’s definitely a correct assumption. Let’s dive a bit deeper for a better understanding.
Licking has been a social behaviour among dogs since the days of the great-great-great granddaddy wolf. 'It’s a standard canine greeting to lick others around the face,” agrees James 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.” But is that all that there is to dog licking behaviour? Or are there more reasons why dogs lick people? Let’s find out!

Here are a few reasons that can explain why dogs like to lick.
For dogs, licking is equivalent to kissing or showing affection. You may have noticed female dogs licking their puppies which is a behaviour that is intended to show affection. And your dog considers you part of their pack, so they show you affection the same way their kind does - by licking.
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 Dr. 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 is despite the fact that dogs only have about 1,700 taste buds compared to around 9,000 in humans.
Have you been too busy with work lately? Or has anything kept you inattentive toward your pooch? If so, it’s probably one of the reasons why your dog is licking you. It is also possible that your dog just got too bored and wants you to play with them, which is why they’re suddenly licking you.
That’s true. Much like humans, dogs can also suffer from obsessive-compulsive disorder, which can be concerning. It is often triggered due to stress and anxiety and makes the dogs suddenly begin licking. You will need to visit your vet if you suspect this to be the case.

Unlike humans, no other animals have knowledge about or access to proper healthcare. So, when they get injured, their first instinct is to lick their wounds. This helps them numb the pain to a certain extent, and also clean the wound. Thus, when your dog sees a wound on you, their natural instincts kick in and they try to help you by licking the wound, thinking it will clean the wound and lower the pain.
In fact, 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 licking. 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 a dog’s saliva does have some possible bactericidal properties against some types of bacteria, it can put you at 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.
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.” This acts as a form of positive reinforcement. Over time your dog will learn to scale back on the smooches. Another thing you can try is training them to cut back on the licking. Remember to use positive reinforcement in this case too - reward them with treats or toys when they display good behavior.
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Yes, but not always. For dogs, licking is also a way to explore and understand the world and the beings around them. Sometimes it can also be an indication of their OCD.
Your dog may be licking you because of either of these reasons - to show affection, to seek your attention, because they like how you taste, or because they are feeling stressed or anxious.
If a dog keeps licking constantly, it may be because they are feeling anxious or stressed. Sometimes these feelings also trigger OCD in dogs, which can make them lick obsessively. They may also do it when they are bored and want your attention.
Sometimes, dogs choose to show dominance via licking. They may do this with either other dogs of the pack or with humans. Dog licking may indicate dominance especially when the licks are uninvited, and the dog begins showing dominant behaviour. This can include not obeying commands and acting in a demanding way.
A dog’s licking may indicate several things. They are either showing affection or are just bored and need your attention. They may also lick you if they think you taste good or interesting.
With so many choices, finding a good puppy food can seem outright daunting. Well, it’s about to get a little easier. Watch as Dr. Katy Nelson takes you through the ins and outs of puppy nutrition with information on everything from age appropriate dog food, to the importance of feeding schedules.
Hi, I'm Dr. Katy Nelson with IAMS. Today we're going to talk about dog nutrition, and what you should look for in your puppy's food. Just like infants, puppies require different levels of nutrients than older dogs. Physically, puppies grow fastest during the first six months. The right nutrition is critical to support this rapid growth. That said, your puppy should only receive premium puppy food until he reaches his adult height and weight. That's typically in the first year for small and medium breeds, and can be up to two years for large and giant breeds. One more thing to consider is that a puppy's energy requirements can be nearly twice that of an adult dog. And since their stomachs are smaller, they need more nutritionally dense food formulated just for puppies to help them meet their energy needs. There are three types of food: dry kibble, semi-moist—which comes in sealed packages—and moist or canned. Most veterinarians and trainers recommend dry kibble food, because of its fat content, and the fact that moist food can spoil. Dry kibble also helps with tartar control, which is particularly important for his developing teeth. When you're shopping for food, there are a couple of things you want to look for and keep in mind. Number one, look on the label for a statement that says, 'Formulated to meet the nutritional levels established by the AAFCO dog food Nutrient Profiles for growth.' Number two, read the ingredients list on the back of the package, and look for real meat as the first ingredient. Puppies grow the fastest during the first six months of life, and because growth rates differ among breed sizes, you need to feed a formula designed to address the needs of your puppy's breed and size. Ideally, puppy food should also contain animal based protein for strong muscles. The protein requirement for growing poppies is higher than that for adult dogs. High quality protein is critical for puppies to create new body tissue as they grow. Calcium for strong bones and teeth, iron for healthy blood, DHA for the brain, central nervous system, and vision. DHA is a key ingredient found naturally in mother's milk, and is important for a baby's neural development. Just like a baby, your puppy's ability to learn depends on healthy brain development. Prebiotics for healthy immune system, because 65% of your puppy's immune system is in his digestive tract, and high in calories for all the energy a puppy burns. The nutritional needs for puppies differ for different breeds sizes. Large breed puppies grow more quickly. Because of that, they actually need less calcium, so their bones don't grow too fast. Medium breed dogs need a careful balance of calories and nutrients to be sure that they don't gain excess weight, while small breed puppies need nutrient dense food in small bites, because their metabolism tends to be faster, and they have different energy needs than larger dogs. Another important thing to know is that what is good for humans is not necessarily good for animals. Because proper nutrition is critical for optimal development, and because human food doesn't offer the proper balance of nutrients puppies need, it is important to teach your whole family that feeding your puppy or your dog table scraps is a big no-no, and a major health hazard. Now let's talk about feeding schedules. Just like babies, puppies do best on a regular schedule. Schedules teach them that there are times to eat, times to play, and times to potty. Obviously, the feeding schedule will largely be dictated by your own personal schedule. But no matter what, it is critical that puppies younger than four months be fed multiple times per day. Depending on your puppy's breed size, at around six months, you can start to limit feedings to twice a day. Also, keep in mind that eating is soon followed by the urge to go to the bathroom. If you work away from your house and are unable to feed and walk your puppy as often as needed, think about hiring a dog walker, or ask a neighbor to help you keep your puppy on his schedule. For more information on house training, watch 'How to House Train Your Puppy.' Another important nutritional determinant is how much you're supposed to feed your developing puppy. Even though the back of the puppy food bags usually have suggested portion sizes based on weight, they are not always right for your puppy. So it's best to pay attention to your puppy's body and talk to your veterinarian. Remember, a fat puppy is not necessarily a healthy puppy. Just as childhood obesity can lead to adult health issues in humans, monitoring a puppy's weight is very important to ensure proper development. Treats are another food source to consider when determining portion size. It is important to limit treating to less than 10% of your puppy's daily caloric intake. When selecting treats, hard chew treats are ideal, because they improve dental health through gnawing. Also, try to save treating for training sessions to reward good behavior, but be careful not to overdo it. For more information on training, watch our video 'Puppy training basics.' The last part of puppy nutrition we are going to talk about is water. Puppies need fresh, clean water available at all times. Like us, it is their most important nutrient. You should change your puppy's water often, at least once a day. Providing fresh, clean water greatly reduces the risk of disease, and therefore keeps your pet happy and healthy. I'm Dr. Katy Nelson for IAMS, and I hope that you found this helpful as you welcome your new addition into your family.