A dog’s constant itching, stomach problems, or recurring ear infections can be frustrating both for the pet and the owner. One common reason behind these problems is food hypersensitivity, which burdens the dog’s body and shows up as various skin and intestinal symptoms. Often, alongside hypersensitivities, yeast is also discussed, as it can get out of control in an irritated body and cause recurring infections. But what are dog hypersensitivities and yeast, how are they related to each other, and what kind of diet can help in managing the problems?

Food hypersensitivities – what is it about?
A dog’s food hypersensitivity means that the body reacts negatively to a certain ingredient. The reaction is not always an actual allergy, but the consequences can be just as troublesome. Typical symptoms are constant itching, redness, flaking of the skin, and hair loss. In some dogs the problems show especially in the stomach: the stool is constantly loose, the dog suffers from diarrhea, or its stomach is otherwise sensitive.
The most common causes of hypersensitivity are beef, chicken, dairy products, and grains, but symptoms can arise from almost any ingredient. Since every dog is an individual, there is no single list of “forbidden ingredients” – only what does or does not suit one’s own dog.
Food hypersensitivity is often investigated using an elimination diet. In this case the dog receives, for several weeks, only one protein source and one carbohydrate. If the symptoms ease, new ingredients are gradually added to the diet and monitored to see if symptoms return. The process is slow but often necessary in order to find the cause.

Yeast – a consequence of symptoms, not just a cause
Yeasts are single-celled fungi, of which the most common on the skin and in the ears of dogs is Malassezia pachydermatis. It is also found in healthy dogs as part of the normal microbiota, but when the defense mechanisms falter, yeast can grow excessively and cause infections. There are almost always predisposing factors in the background: food hypersensitivity or atopy, moisture and warmth (e.g. narrow ear canals, skin folds), hormonal changes and underlying diseases (such as hypothyroidism or diabetes), repeated medication courses as well as stress and aging.
Yeast may occur in the ears, on the skin, between the paws, and at mucosal and mucosal-skin borders (lip folds, genital areas). In the ears, the symptom is a sweet, pungent smell and dark, sticky discharge that does not go away even with regular cleaning. On the skin, yeast causes itching, hair loss, inflammatory problems, and flaking. The areas between the paws may redden and become sore, the nail beds may discolor, and the skin may thicken into “elephant skin.” Prolonged scratching predisposes to secondary bacterial infections.
Alongside Malassezia, in some dogs also yeasts of the genus Candida can accelerate in the intestines, especially when the intestinal bacterial balance is disturbed (e.g. illness, medications, stress). In this case intestinal well-being is closely connected with skin and ear symptoms. Candida displaces lactic acid bacteria, and the toxins it produces get absorbed into the metabolism. This condition is sometimes called “leaky gut,” and it can show up as various allergy and skin symptoms.
Yeasts themselves are not “bad,” but belong to the normal microbiota. The problem arises when their number gets out of control and the balance is disturbed. Therefore yeast is not just a local problem but a sign of imbalance in the body.
Myth vs. fact: yeast in food
Myth: Yeast infection is caused by the yeast contained in food.
Fact: The baking or nutritional yeast in food is not connected to yeast in a dog’s skin and ears. The core of the problem is the balance of the dog’s microbiota and immune defense, not a single row of “yeast-free” ingredients.
How are yeast and hypersensitivities diagnosed?
A dog’s skin and ear symptoms, such as itching, redness, flaking, or dark brown ear discharge, can be caused by many different reasons. Symptoms often resemble each other, so finding the real cause is not always possible with home methods.
The veterinarian carefully examines the symptomatic area and, if necessary, takes samples from the skin or ear canal. With a microscope the number of yeast cells and bacteria as well as the degree of inflammation can be assessed. In the case of food hypersensitivities and allergies, diagnosis is often based on an elimination diet, i.e. a strictly limited diet with which the ingredient causing the symptoms is identified.
Only when the underlying cause of the problem is identified can the right treatments and a suitable diet be chosen. If it is a yeast overgrowth, treatment usually includes medicinal local treatment and a possible course of medication. If the background is allergy or food hypersensitivity, the main help comes from the right kind of food that does not contain problematic ingredients for the dog.
When the cause has been identified and treated, the dog’s well-being can be maintained with high-quality complete food, such as the ERA series recipes, which are designed to support sensitive dogs’ digestion and immunity. This way the dog not only gets relief from symptoms but also a solid foundation for long-term health.
The role of nutrition in managing yeast and hypersensitivity symptoms
Nutrition should be easily digestible, protein-focused, and soothing for the intestines. Single-protein recipes make it easier to pinpoint the cause of symptoms, since then it is known exactly what the dog eats. Grain-free recipes suit many sensitive-stomached dogs, and slowly absorbed carbohydrates such as brown rice and sweet potato provide energy without irritating the intestines.
Support products can help the body recover: probiotics and prebiotics balance the microbiota, Saccharomyces boulardii yeast protects the mucous membranes, glutamine strengthens the intestinal walls, and omega fatty acids reduce inflammation and support skin and coat condition. Their effect materializes over weeks to months as the body recovers.

ERA Centurion – grain-free options
The ERA Centurion series is designed especially for dogs with allergies or sensitive stomachs. The recipes are completely grain-free and based on salmon and venison.
The series includes two options:
The first ingredient is always fresh salmon, in addition to which there is plenty of dried venison. The high protein content and sweet potato as a low glycemic index energy source make the food nutritious and highly digestible. Functional ingredients – such as seaweed, glucosamine, chondroitin, and probiotics – support the dog’s overall well-being, joint health, and dental condition.
ERA Centurion is particularly well suited for dogs prone to food hypersensitivities, skin problems, or yeast issues.

ERA Millennium – a versatile option for every dog
The ERA Millennium series offers a broader selection of recipes from puppies to adults. Millennium foods combine high animal protein content, fresh meat as the first ingredient, and carefully chosen carbohydrates such as brown rice and sweet potato.
The series includes options for dogs of different sizes and with different protein bases, for example chicken & pheasant, duck & lamb, and salmon & herring. The series has its own recipes for puppies and adults of small, medium, and large breeds, so the dog gets exactly the nutrition it needs.
ERA Millennium is a good choice for a dog that does not necessarily need completely grain-free food but benefits from high-quality proteins, slow-releasing energy, and gut-supporting ingredients. Probiotics and prebiotics strengthen the immune system, and omega fatty acids keep the coat shiny and the skin healthy.
A well-being dog is a happy dog
Food hypersensitivities and yeast infections in dogs often go hand in hand. If the diet does not suit the dog, the body becomes burdened and yeast gets favorable conditions for growth. That is why the problem cannot be solved only with local medicines – a holistic approach is needed, in which nutrition plays a central role.
The ERA food series has been developed with these needs in mind. ERA Centurion offers grain-free options for sensitive and allergic dogs, while ERA Millennium offers versatile recipes for dogs of different sizes and life stages. The common factor is high quality: fresh meat as the first ingredient, a high share of animal protein, and functional additives that support the dog’s health comprehensively.
When you want to ease your dog’s hypersensitivities and keep yeast problems under control, diet is the key. ERA gives you the tools to choose a healthy and tasty option suitable for your dog.
Valid as of 1.3.2023
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