“Frito Feet” Why Your Dogs Paws Smell Like Corn Chips and What to Do About It

The underside of a dog's paw against a white background
© iStock.com/erikreis

Written by Sharon Parry

Updated: October 26, 2023

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It’s not really surprising that dogs get smelly feet! After all, they are attracted to what we consider disgusting smells and like to roll around in them. They spend a lot of time tramping through the undergrowth and may even have to pick their way through garbage on the sidewalk. But there is one smell that puzzles owners more than any other and that is the unmistakable odor of corn chips. So, why do dogs smell like Fritos?

Dogs’ Frito feet odor is caused by bacteria and yeast (fungi) that thrive in between your dog’s paw pads. Two types of bacteria, in particular proteus and pseudomonas, produce a volatile chemical that has a salty/yeasty odor.

Let’s look a little closer at why this happens and whether you should be concerned about it.

What Makes Dogs’ Paws Smell?

Let’s start by explaining what it is about your dog’s paws that makes them particularly prone to getting quite smelly.

Dogs’ Paws Are Complicated

Dogs’ paws are a lot more complicated than you may realize and consist of several parts. There are claws right at the end which are broadly equivalent to our nails. They have an extra dew claw which is found further back and on the inside of the foot. Next are the toes which correspond to the four smaller front pads – these are called the digital pads. Behind these comes a single larger pad called the metacarpal pad. Finally, the carpal pad is found at the back of the foot near what we consider to be the ‘ankle joint’. Some breeds such as the Newfoundland and the Dachshund have webbing which makes their feet even more complex.

Dogs actually walk on their tiptoes! All of these parts create plenty of nooks and crannies where debris, dirt, bacteria, and yeasts can get stuck and create odors.

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Dogs Have Spongey Pads to Walk On

Dogs have spongey pads at the bottom of their paws. These protect the delicate structure of the foot from damage and allow wild dogs to travel long distances over rough ground. They also act as shock absorbers and therefore give some protection to joints. You may have noticed that your dog trots along the frosty ground and through cold puddles without seeming to notice. This is because the paw pads also act as insulators.

However, to give a dog’s foot flexibility, there are several paw pads instead of one. This means that there are spaces in between the pads that are warm and moist and an ideal environment for an overgrowth of bacteria and yeast.

Dogs Don’t Avoid Stinky Things!

Dogs seem to be attracted to stinky things. We may think that a decaying carcass or fox poo smells horrendous, but dogs are attracted to this sort of thing! It may date back to their scavenger lifestyle as wild dogs.

They also like to roll in smelly things and will have no problem stepping in them. This can lead to smelly feet!

Dogs Sweat Through Their Paws

Dogs do not have sweat glands on many parts of their body. They rely on panting to cool them down instead. However, they do have sweat glands on their paws. They have Merocrine sweat glands which produce sweat in a similar way to humans. You may have noticed that your dog leaves wet footprints behind on a hot day – this is sweat. The paws also contain Apocrine glands which produce chemical messengers called pheromones. This is why your dog may kick the ground after pooping – they are scenting the area.

Both types of sweat are moist and contain nutrients that bacteria and yeasts can live on. This is another reason why you find a lot of microorganisms around a dog’s feet.

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Why Do Dogs Smell Like Fritos?

So, now we understand that there are lots of things about dogs’ feet that attract bacteria and yeasts. This means that they grow to quite high numbers – it is sometimes called an over-growth. These micro-organisms release chemicals into the air as they grow and we detect the volatile chemicals as odors.

The name of one of the bacteria is Pseudomonas and it has a smell that many people think is similar to corn chips. Although other people describe it as “like grapes.” Another bacterial species that likes to live on dogs’ paws is proteus and it can also produce a salty, Frito smell. There may also be some yeasts growing at the same time which have a kind of fermenting smell.

The combination of all these bacteria and yeasts and the chemicals that they produce results in – Frito feet!

Should You Worry About Frito Feet?

Most of the time, there is no need to worry if your dog’s feet smell like Fritos. The presence of bacteria is not the same thing as having an infection. The bacteria are not inside the body but are living on the surface. However, there are some occasions where you should be more concerned. So, if your dog has Frito feet, have a good look at their paws to check that everything looks normal. Warning signs include changes in color or texture, bleeding, and discharge.

Here are some things to look out for:

  • Severe overgrowth of bacteria or yeast. This can start to invade the tissues in the area and paws can start to look red and feel hot. You may also notice that scales are forming.
  • Constant licking. Obviously, all dogs lick their paws on occasion but if your dog is constantly fussing over their paws it can mean that there is a problem. Constant licking disrupts the delicate balance of the skin and can lead to irritation, inflammation, and infection.
  • Foreign bodies. Sharp objects like small stones, thorns, and shards of glass can get lodged in and in between paw pads. These can lead to infections which can cause an unpleasant smell.
  • Build-up of debris. Smaller particles such as dust, dirt, grass, and soil can get stuck in between paw pads. This starts to rot over time and can cause a nasty odor.
  • Skin conditions. Some skin conditions including allergic dermatitis and skin tumors can cause the skin around the paws to smell.

All of the above conditions should be checked out by your vet.

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What Can You Do About Dog Feet Smell?

You don’t have to do anything!  Most of the time Frito feet are perfectly healthy. However, if you feel that it is an issue that you want to keep on top of, here are some ideas.

  • Paw cleanliness. Keeping the paw pads and the fur in between them clean so that bacteria have less opportunity to grow.
  • Paw maintenance. Cracked paws are more likely to be invaded by bacteria and an overgrowth of micro-organisms is more likely. You can protect paws with wax that helps them safe from heat, cold, and chemicals.
  • Keep nails short. Neatly trimmed nails make it more comfortable for your dog to walk and reduce the risk of torn nails which can result in infection.
  • Trim fur between the pads. Keep the fur trim between the paw pads so that debris is less likely to build up.
  • Washing paws. Keep your dog’s paws clean by using fresh water or special dog shampoo.
  • Medicated wipes. These can help to reduce bacterial growth but speak to your vet first.
  • Tackle allergies. Food allergies can cause pododermatitis (inflammation of paw skin). If you suspect your dog has a food allergy, speak to your vet about transitioning them onto a special food for dogs with allergies.
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Preventing Smelly Feet in Dogs

It is not possible to get rid of the bacteria that cause Frito feet entirely. However, you can stop them from growing to large numbers. Here are our top hacks:

  • Keep your dog’s feet dry. Bacteria love moisture. So, carry a small towel with you so that you can dry your dog’s paws.
  • Clean their paws. After every walk, get in the habit of cleaning your dog’s paws. You could invest in a portable paw washer or carry some paw wipes with you.
  • Protect paws. If you are walking over very muddy or rough terrain, you could get some dog booties to keep your four-legged friend’s paws protected.

How Can I Treat My Dog’s Infected Paw at Home?

Bulldog licking front paw

Dogs will often lick their paws for a variety of reasons.


Although bacteria is the cause of your dog’s paws smelling like ‘Frito feet’, this does not necessarily indicate there is an infection in them. While it may be an interesting smell, after all, who wants their pet to smell like snack food, it isn’t harming them. However, if you are worried that their paws may be infected, look for these signs:

  • Excessive Licking
  • Redness
  • Swelling

Should they exhibit any of these symptoms, and you wish to treat them at home, in addition to soaking their paws in a warm, soapy bath, using a pet shampoo, there are a few over-the-counter treatments that you can use as well.

  • Antibacterial Ointments
  • Antifungal Creams
  • Hydrocortisone creams

Always remember to only use items that are deemed dog-safe, or pet-safe, as typically items made for humans are not safe for your pets. It is always best to consult with your veterinarian if you are unsure or if your dog’s paws do not show signs of improvement.

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About the Author

Dr Sharon Parry is a writer at A-Z animals where her primary focus is on dogs, animal behavior, and research. Sharon holds a PhD from Leeds University, UK which she earned in 1998 and has been working as a science writer for the last 15 years. A resident of Wales, UK, Sharon loves taking care of her spaniel named Dexter and hiking around coastlines and mountains.

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