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Introducing Your Dog to a Ketogenic Diet – How to Do It Safely

dog ketosis
WHAT IS A KETOGENIC DIET?
ARE KETOGENIC DIETS SAFE FOR DOGS?
WHAT ARE THE HEALTH BENEFITS OF A KETOGENIC DIET IN DOGS?
WHAT DOGS SHOULD NOT EAT A KETOGENIC DIET?
WHAT DOES THE RESEARCH SAY ABOUT DOGS EATING A KETO DIET?
SHOULD I START MY DOG ON A KETO DIET?
HOW DO I START MY DOG ON A KETO DIET?
FAQS ABOUT DOGS AND THE KETO DIET

Understand the Ketogenic Diet Basics

Before introducing your dog to a ketogenic diet, it is important to understand the basics of the lifestyle.

A ketogenic diet emphasizes high-fat, low-carbohydrate meals that put your dog’s body into a metabolic state known as ketosis, where fat is burned for fuel instead of carbohydrates.

There are several variations of the diet and benefits to this lifestyle can include improved mental and physical performance, reduced inflammation, and improved energy levels in dogs.

What is a ketogenic diet for dogs?

The ketogenic diet has three main components: it is high in fat, low in carbohydrates, and adequate in protein. The diet was named ketogenic because fat is converted to ketones that are utilized as energy in place of carbs which pushes the body into a metabolic state known as ketosis.

The diet aims to force your body into using a different type of fuel, fats instead of carbohydrates which are usually the main fuel burned for energy in your body.

Dietary fat provides the most concentrated source of energy in the diet. When feeding your dog a diet high in total fat you must take care to ensure an adequate intake of protein, minerals, and vitamins.

The ketogenic diet is basically mimicking a constant state of starvation by forcing the body to burn fats rather than carbs/sugars. When the body doesn’t have access to carbs it begins to break down stored fat and creates ketones to use as energy instead of sugars that come from eating carbohydrates.

Carbohydrates are found in a wide array of foods—beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and white bread, vegetables, fruits, and beans.


Are ketogenic diets safe for dogs?

The majority of the research states that ketogenic diets are fairly safe for dogs. One of the main reasons is that in the wild, canines will in the majority of cases naturally consume a very low amount of carbohydrates, usually between 3%-5%. If your dog were in the wild and had to hunt for their food the typical ratios of carbs, proteins, and fats would be fairly close to a ketogenic diet.

However, there can be some side effects to feeding your dog a ketogenic diet:

  • Gastrointestinal upset: Diarrhea or constipation usually
  • Keto flu: lethargy, gi upset as stated above (this is the same in humans)
  • Renal Calculi: This is rare in dogs
  • Stunted Growth: Especially if meals are not formulated properly
  • Pancreatitis: Due to the high fat content of the diet, (this is under much debate as some companies, like KetoPet, attribute pancreatitis to the increased carbohydrates in the common canine kibble diet as opposed to fat

The health benefits of a ketogenic diet for dogs

There are many pet owners that have placed their dogs on a ketogenic diet and their pets have shown tremendous improvements in their diseases. While more studies are needed, some common diseases that ketogenic diets are said to help with are listed below.

Weight loss

The ketogenic diet has become popular in humans mainly because of the weight loss benefits associated with it. The same is true in dogs fed a ketogenic diet. Since it is a calorie-restricted diet, some pet parents love the resulting weight loss they have seen in their dogs on the diet.

Neuroprotection

In humans, the ketogenic diet is often combined with antiseizure medication in children with epilepsy and has been shown to have some protective effects for those developing Alzheimers.

There is some evidence that ketone bodies have anticonvulsant activity. While one of the earlier studies showed no change there have been case studies and retrospective studies that have shown a significant decrease or elimination of seizures in dogs fed a ketogenic diet.

There have not been any studies specifically on cognitive dysfunction syndrome in senior dogs and a ketogenic diet, but hopefully, those studies are underway!

Cancer

It is well known that many cancer cells rely on sugar for energy and since the ketogenic diet is decreased in carbs and subsequently sugars the cancer cells are basically starved. This is the main hypothesis that many scientists give as a reason for including a ketogenic diet in canine cancer patients. (Source). The addition of a ketogenic diet seems to be most beneficial for dogs that are early in the disease.


What dogs should not eat a ketogenic diet?

While you should always do what you feel is best for your fur baby, it is highly advised that you speak with your veterinary nutritionist before starting your dog on a ketogenic diet if they suffer from one of the illnesses below

Dogs with Pancreatitis

According to the Harvard School of Public Health, many popular ketogenic resources suggest an average of 70-80% fat which for dogs with pancreatitis or others that should eat a diet low in fat could cause a setback in any progress made on previous treatments.

Dogs with Diabetes

You would think that a ketogenic diet would be perfectly safe for a dog with diabetes, but there is one issue. You will have to carefully monitor the insulin dose you inject your pup with to ensure they don’t become hypoglycemic. This usually just entails lowering their morning insulin dose.

Dogs with IBD & Colitis

Much like pancreatitis, you want to be wary of feeding dogs with gi issues like IBD and Colitis foods with high-fat content.

Dogs with Kidney Issues

Since, although rare, ketogenic diets have been known to cause kidney stones this should always be something that is regularly checked if you decide to put your dog on a ketogenic diet

Growing pups

This is especially true if you are going to feed your pup a homemade diet as they need an increase in protein since they are growing


A Review of the Research

While many more studies are still underway, let’s look at some of the research done on dogs that are eating ketogenic diets. Many of the studies use the MCT diet which is a form of ketogenic diet therapy. The MCT diet includes a supplement called MCT oil, which contains medium-chain triglycerides and produces ketones in the body. Click the links to visit the websites where these papers are published.

dog ketosis
dog ketosis
dog ketosis
dog ketosis
dog ketosis

Should I start my dog on a ketogenic diet?

This is definitely an individual decision as every dog is different. Speak with a veterinary nutritionist if you are having doubts about starting your dog on a ketogenic diet or have further questions.

Since dogs are carnivores and can naturally tolerate longer periods of not eating and do not respond the same way to ketogenic diets as humans, meaning it takes them longer to go into ketosis, and when they do their bodies often produce fewer ketones. Another hypothesis is that dogs use ketones more efficiently than humans, therefore there will be less circulating.

Keep in mind that while there are some studies, there really isn’t enough clinical research and data to show if ketogenic diets could truly benefit your dog, other than cancers and possibly seizures in dogs.

Here are some questions to ask yourself while making the decision:

  • Does my dog have any comorbidities such as pancreatitis, diabetes, IBS, or colitis?
  • Is my dog a picky eater?
  • Do I have time to make meals for my dog or the money to purchase pre-made meals?

How do I start my dog on a ketogenic diet?

Congratulations on deciding to take the plunge on feeding your dog a ketogenic diet!

Let’s go over some of the things you will have to keep in mind when doing so

Items to purchase

  • Glucose meter: to check your dog’s glucose levels (especially if your pup has diabetes). Blood glucose measures may be lower than average since it is no longer the primary energy source.
  • Ketone meter: Check your dog’s ketones at least twice a week. It’s important to note that urine ketone strips are not a reliable indicator for dogs, since small amounts of ketones can be found in normal dog urine, and once your dog’s body has adapted there will most likely be no ketones in the urine as the body will use them instead of excreting them.
  • Enzyme supplement: With older patients that may have cancer or diabetes, it is often advised to add a pancreatic enzyme supplement. This will help assist in the transition process for all pets. (Source)

If your dog’s blood glucose levels are at or below 75 mg/dL and blood ketone levels at or above 0.3 mM, then he or she is in a state of ketosis. The ketone levels may be lower especially if they are active


What do I feed my dog on a ketogenic diet?

1. Commercial Diets

If you are new to the ketogenic diet and do not want to make your dog’s meals at home, purchasing an over-the-counter diet may be the option for you. These are premade and often ship to your door via a monthly subscription. One popular diet is Ketonatural, pictured below.

2. Homemade Diets

If you decide to plan your dog’s meals you should know that feeding a dog a ketogenic diet is a lot less complicated than it is for humans since they (hopefully) don’t eat many of the processed foods and sugar like cereals, candy, and bread.

You can have your dogs abstain from grains and most plant-based carbohydrates like potatoes or fruit and their fat intake can be increased through meats like lamb, beef, and fish. You can also increase green vegetables like broccoli and kale, but not carb-heavy vegetables like carrots and peas. (Source)

A canine keto diet will usually consist of at least 70% fat, 25% protein, and 5 % carbs on a dry-matter basis, meaning the moisture has been removed.

It appears that dogs adapt to a fairly wide range of fat types and amounts, but dogs usually prefer animal fats most likely due to taste (Rainvird, 1988)

The chart below details the diet plan was given by KetoPet, which starts dogs with cancer off on option 2 of 82% fat.

dog ketosis
Source: KetoPet

FATS (70%)

  • Ghee
  • Kefir
  • Coconut oil
  • MCT oil
  • Avocado oil
  • Olive oil
  • Pasture-raised butter
  • Fats from meats

PROTEINS (25%)

  • Organic Meats
  • Fresh Caught Fish

CARBOHYDRATES (5%)

  • Green beans
  • Cabbage
  • Collard Greens
  • Kale
  • Broccoli
  • Blue Berries

The KetoPet Sanctuary has an awesome keto diet calculator for dogs. KetoPet Sanctuary is a non-profit organization that has tested the feasibility of using a ketogenic diet as adjunctive therapy in dogs with cancer.


FAQs about feeding your dog a ketogenic diet

  • Make the transition to a ketone diet gradually, ideally over 10-14 days
  • What if my dog doesn’t like the food? Many owners find this to be true if they have very picky eaters, it is usually the fat content in the food, so try an alternative fat
  • What if I want the benefits of a ketogenic diet but do not want to switch completely? You can do a modified ketogenic diet which ensures they are getting all of their necessary nutrients. You can also add MCT to your dog’s food which creates ketones.
  • My dog seems sluggish after starting the diet: Your dog may feel slightly lethargic for a couple of days once starting the diet and can have some diarrhea or constipation due to the increased fat content of his or her meal

Before switching your dog to a ketogenic diet, you should always speak with your veterinarian to make sure it is the right lifestyle for your fur baby’s health and wellness needs.

A ketogenic diet requires careful planning, monitoring, and preparation of meals that include fresh, whole ingredients like nutritious proteins and healthy fats to help ensure optimal nutrient absorption.

In addition, some owners opt to add supplements like vitamins, minerals, and fiber to fill in any dietary gaps.

Have other questions about feeding your dog a ketogenic diet? Ask in our online community

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