Eggs in your dog’s diet: raw or cooked, with or without the shell?

Eggs are one of the simplest ways to add real food to your dog’s diet. They provide high-quality protein, fats, choline, selenium, and a range of vitamins and minerals. Yet eggs have attracted plenty of conflicting advice over the years: never feed them raw, egg white is bad, eggs cause biotin deficiency, cholesterol is a problem, or, at the opposite extreme, eggs should always be fed raw and definitely with the shell.

The reality is not so black and white. It is important to separate the nutritional value of the egg itself, the method of preparation, microbiological risk, and the role the egg plays in the dog’s overall diet. For a dog eating a complete food, an egg is an extra. In a homemade or raw diet, it can be a regular ingredient, but the entire diet still needs to be balanced.

I have fed eggs to my own dogs for years and prefer free-range eggs from a known source. That is my personal preference, not a claim that farm eggs are automatically microbiologically safe. With raw eggs, bacterial risk remains regardless of where the egg comes from.

Why are eggs valuable in the first place?

Eggs are a nutrient-dense animal food. Their protein is particularly valuable: eggs contain all essential amino acids and provide highly usable protein. One large chicken egg contains approximately 6-7 grams of protein and around 70-80 kcal of energy.

Eggs also provide, among other things:

• choline, which is involved in cell membranes, fat metabolism, and nervous system function;
• selenium and iodine;
• B vitamins, including B12 and riboflavin;
• vitamins A, D, and E;
• phosphorus and other minerals;
• fats and bioactive compounds from the yolk.

The strength of an egg is not one single “supernutrient”, but the whole food matrix. This is also why an egg can be a very useful whole-food topper, a small fresh-food addition to dry or wet food. You can read more about high-quality animal protein in FendaF’s article “Animal protein in your pet’s diet”.

Raw or cooked egg? Both have advantages and disadvantages

It helps to separate three different questions: what heat does to the antinutritional components of egg white, what it does to protein digestibility, and how it changes food safety.

1. Cooking does not “destroy most nutrients”

Heat treatment can reduce some heat-sensitive vitamins and alter certain bioactive compounds, but the egg’s protein, fat, and minerals do not disappear. The availability of some nutrients may even improve with cooking.

In a controlled human study, the digestibility of cooked egg protein was markedly higher than that of raw egg protein. This cannot be transferred directly to dogs, but it illustrates why “raw preserves everything and cooked egg is nutritionally poor” is not a sound scientific conclusion.

2. Raw egg white contains avidin and protease inhibitors

Avidin in raw egg white binds biotin and can reduce its absorption. Egg white also contains protease inhibitors that can reduce the activity of certain digestive enzymes. Heating denatures these proteins and reduces their effects.

This does not mean that one whole raw egg will cause biotin deficiency or digestive problems in a dog. The issue becomes more relevant when large amounts of raw egg white are fed regularly or when eggs make up a disproportionate part of an unbalanced diet. Egg yolk itself is a source of biotin, and a whole egg is nutritionally very different from feeding isolated raw egg white over a long period.

3. Raw eggs still carry a microbiological risk

Dogs may eat food contaminated with bacteria without showing obvious illness, but that does not make them immune to Salmonella, Listeria, or other foodborne pathogens. Raw animal foods carry a higher contamination risk, and dogs may also shed bacteria in their feces, potentially exposing other animals and people.

I do not take this to mean that every raw egg is dangerous or that raw eggs should never be fed. It is more useful to think in terms of informed risk management. If you choose to feed raw eggs:

• choose fresh eggs that have been stored correctly;
• keep them refrigerated and follow good hygiene practices;
• wash your hands and clean work surfaces after handling raw egg;
• take particular care if the household includes young children, older people, pregnant people, or anyone who is immunocompromised;
• do not assume that “farm” or “organic” automatically means pathogen-free.

Is the cholesterol in eggs a problem for dogs?

For a healthy dog, the cholesterol content of an egg is usually not a reason to exclude eggs from the diet. Canine lipid metabolism differs from human lipid metabolism, and dietary cholesterol does not automatically translate into the same cardiovascular concerns commonly discussed in people.

However, dogs are individuals. If a dog has hyperlipidemia, a risk of pancreatitis, gallbladder disease, a therapeutic diet that restricts fat, or another condition for which a veterinarian has recommended fat restriction, the amount of egg yolk should be considered within the whole diet. In that situation, the issue is less “cholesterol” itself and more the total fat and energy load together with the dog’s specific condition.

How much egg can a dog have?

I would no longer use a universal rule such as “a small dog gets X eggs and a large dog gets Y eggs per week”. Two dogs of the same size can have very different energy requirements: one may be an athlete, another a couch champion, another may be losing weight, and another may be a highly active young dog.

For a dog eating a complete food, treat egg as an extra. Make sure treats and other additions do not begin to displace the main diet. For a small dog, one chicken egg can already represent a meaningful share of daily calories; for a large dog, it is a much smaller addition.

In a homemade or raw diet, eggs can be a regular part of the ration, but the whole diet needs to be calculated and balanced. Adding an egg does not automatically correct a diet that is otherwise out of balance in calcium, micronutrients, or energy.

Start with a smaller amount and observe your dog

If your dog has not eaten egg before, start with a small amount. Watch stool quality, gas, abdominal noises, vomiting, and skin or ear reactions. If food sensitivity is suspected, changing one thing at a time is especially useful; otherwise it becomes difficult to identify what caused the reaction.

Eggshell: a useful calcium source, but not an “just in case” supplement

Eggshell is composed largely of calcium carbonate and, when prepared correctly, finely ground eggshell can be used as a calcium source in a homemade diet. But an important distinction is needed: “eggshell contains calcium” does not automatically mean “my dog needs eggshell”.

If a dog eats a complete and balanced commercial food, calcium and phosphorus are already balanced in the diet. Adding calcium at random can disrupt that balance. This is particularly important during puppy growth, especially in large and giant breeds, because young dogs do not regulate excessive calcium absorption as effectively as adults and excess calcium can interfere with normal skeletal development.

For this reason, I would no longer give a universal recommendation to sprinkle 1/2 teaspoon of eggshell powder onto every dog’s food. In a homemade ration, the amount should be calculated. A dog eating a complete food generally does not need extra eggshell simply “for stronger bones”.

If you use eggshell in a homemade diet, wash and dry the shells, heat-treat them to improve hygiene, and grind them into a very fine powder. Large sharp shell fragments are unnecessary when the goal is calcium supplementation.

You can also read FendaF’s article “Dogs and bones” for more about raw bones and minerals.

Eggshell membrane and joints: interesting, but do not make the research say more than it does

The thin membrane lining the inside of an eggshell contains connective-tissue components, including collagen, glycosaminoglycans, and hyaluronic acid. This is one reason standardized eggshell membrane supplements have been developed for joint support.

In a 2016 randomized, double-blind, placebo-controlled study, 51 dogs received a standardized NEM® eggshell membrane preparation at approximately 13.5 mg/kg per day for six weeks. Improvements were reported in some pain and function measures compared with placebo. A later pilot study and a 2025 study of a multi-ingredient joint supplement also provide interesting signals, but the results need to be interpreted alongside study limitations and manufacturer relationships.

An important nuance: this does not prove that the membrane attached to one raw egg provides the same therapeutic dose or the same clinical effect. I would not throw the membrane away, it can perfectly well remain as part of the whole food, but I would not call it an arthritis treatment.

Does the membrane have to be fed raw?

I did not find high-quality dog-specific evidence showing that ordinary cooking completely “destroys” the beneficial properties of eggshell membrane. I therefore would not make that a rule. If the aim is targeted joint support, a standardized product with a studied dose is a very different thing from the incidental amount of membrane attached to one egg.

What about eggs as part of an integrative diet?

What I like about eggs in integrative nutrition is that they are simple real food rather than another jar. If a dog tolerates eggs, they can add high-quality animal protein and a range of micronutrients through a single food.

At the same time, “whole food” does not automatically mean “suitable for everyone” or “the more, the better”. The strength of an integrative approach should be the whole picture:

• what the dog already eats;
• digestion and individual tolerance;
• diseases or therapeutic-diet restrictions;
• activity level, body weight, and life stage;
• whether adding an egg genuinely fills a need or simply adds calories.

If a dog’s diet is highly processed and the owner’s goal is to add a small amount of fresh real food, egg can be one of the simplest options. If the diet is already balanced and varied, egg is not a compulsory “superfood” that has to be added every day.

A raw diet does not become balanced simply by adding an egg

Eggs fit very well into a raw-food diet, but they do not compensate for a poorly formulated ration. The balance between meat, organs, bone or another calcium source, fatty acids, micronutrients, and energy still matters. If you prepare your dog’s entire diet at home, look at it as a whole rather than trying to solve every possible deficiency by adding one new ingredient at a time. Adding twenty “superfoods” to the bowl does not magically turn an unbalanced diet into a balanced one.

Allergy or sensitivity

Egg can trigger a food reaction in some dogs. Signs may include not only vomiting or diarrhea but also itching and recurrent ear or skin problems. However, one symptom alone does not prove an egg allergy. If the association seems repeatable, it may be useful to remove egg in a controlled way for a period and, if necessary, discuss an elimination diet with a veterinarian.

Choline crisps: an old recipe worth keeping

If you would like to offer egg as a treat or topper in another form, you can use Karen Shaw Becker’s choline crisp idea:

• hard-boil the eggs;
• peel and slice them thinly;
• dry them in a food dehydrator at about 65 °C for 6-8 hours, or in the oven at the lowest practical temperature, until the slices are dry and firm;
• store the finished crisps in a sealed container in the refrigerator and use them within a few days.

No seasoning is needed. If your dog requires a low-fat therapeutic diet or has had pancreatitis, ask your veterinarian before regularly using treats containing egg yolk.

In summary: eggs are good food, but context matters

Eggs can be a valuable part of a dog’s diet. They provide high-quality protein, choline, selenium, vitamins, minerals, and fats, and many dogs tolerate them well both as a fresh addition and as an ingredient in a homemade diet.

I continue to feed eggs to my own dogs and prefer free-range eggs from a known source. I see no reason to turn raw eggs into a panic topic, but I also no longer claim that raw is always nutritionally superior or practically risk-free. There are real differences between raw and cooked eggs, and the choice depends on what matters for your individual dog and what level of risk is reasonable for your household.

The most important principles:

• eggs do not need to be feared, but they do not need to be idealized either;
• cooking reduces the effects of antinutritional components in raw egg white and reduces bacterial risk;
• raw egg may suit a healthy dog when the owner understands the hygiene and microbiological risks;
• eggshell can be a calcium source only when the overall diet actually requires it;
• calcium should not be added to a puppy’s diet “just in case”;
• eggshell membrane is an interesting whole-food component, but studies of standardized joint supplements cannot be equated with the membrane from one egg;
• the overall diet is always more important than any single ingredient marketed as a superfood.

Your dog’s bowl does not need as many “good things” as possible. It needs the things that fit the rest of the diet, the dog’s health, and the dog’s actual needs.

Sources used

• Merck Veterinary Manual – Nutritional Requirements of Small Animals
• Merck Veterinary Manual – Feeding Practices in Small Animals
• WSAVA – Raw Meat Based Diets for Pets
• FDA – Get the Facts! Raw Pet Food Diets can be Dangerous to You and Your Pet
• Evenepoel et al. – Digestibility of cooked and raw egg protein in humans
• Ruff et al. – Effectiveness of NEM eggshell membrane in dogs
• Muller et al. – Eggshell membrane-based supplement in dogs with osteoarthritis
• Ragetly et al. 2025 – Joint supplement containing eggshell membrane in dogs with osteoarthritis
• VCA Animal Hospitals – Hyperlipidemia