Homemade probiotics for dogs

Probiotics for dogs – The benefits of fermented vegetables

Dogs and probiotics go hand in hand when it comes to maintaining overall health. Just like in humans, a strong immune system in dogs starts with a healthy gut. According to Dr. Karen Shaw Becker, who extensively discusses this topic in her book (The Forever Dog) and videos, fermented vegetables, also known as lacto-fermented vegetables, provide a natural source of probiotics that support toxin elimination. The gut microbiome plays a crucial role in immune function, as beneficial bacteria aid digestion, enhance nutrient absorption, and protect against pathogens. If this delicate balance is disrupted—due to antibiotic treatments, stress, or improper diet—it can weaken the immune system and cause digestive issues.

Why are probiotics essential for dogs?

A dog’s digestive system is primarily designed to process animal-based foods, but it can also adapt to digest certain carbohydrates. A balanced gut flora contributes to immune support, energy production, and efficient nutrient absorption. The best probiotic for dogs often contains strains of Lactobacillus and Bifidobacterium, which help maintain beneficial bacteria levels, promoting better digestion and a stronger immune system.

The benefits of fermented vegetables

Lacto-fermented vegetables serve as a natural source of dog probiotics, promoting gut flora balance. The fermentation process allows beneficial bacteria to break down vegetable components, reducing carbohydrate content and improving digestibility. This is particularly beneficial for dogs with sensitive stomachs or digestive disorders.
Additionally, fermented vegetables not only aid digestion but also release vital vitamins and minerals that a dog’s body can absorb more efficiently. Lactic acid and other beneficial compounds produced during fermentation contribute to gut health and support the body’s natural detoxification processes.

What fermented vegetables should we give to dogs?

Dogs generally tolerate low-starch fermented vegetables well, such as zucchini, cabbage, kohlrabi, and cucumber. Higher-starch vegetables like carrots or beets can also be fermented, but they should be introduced gradually. The juice from fermented vegetables is also beneficial, as it contains concentrated probiotics and other essential nutrients.

How to make probiotic-rich fermented vegetables for dogs

Choosing the right vegetables

Only ferment vegetables that are safe for dogs to eat raw. While fruits can also be fermented, vegetables are a healthier and more convenient choice for canine consumption.

For beginners, start with low-starch vegetables like cucumbers, zucchini, Jerusalem artichokes, kohlrabi, squash, or cabbage. More experienced fermenters can try carrots, parsley root, sweet potatoes, pumpkin, or beets—though these require more careful preparation.

Selecting the right water and salt

Use purified, non-carbonated mineral water or boiled and cooled tap water. For salt, choose non-iodized natural varieties, such as Himalayan salt, alpine salt, or rock salt, which are rich in minerals.

Tools and preparation for dog probiotic making

You’ll need a well-sealed glass jar, a cutting board, a sharp knife, a slicer, or a grater. Ensure all equipment is thoroughly cleaned, ideally by scalding.

Step-by-step guide to fermenting vegetables for dogs

1. Prepare the vegetables – Wash them thoroughly, chop to desired size, and mix with chosen herbs or additives.
2. Prepare the brine – For every liter of room-temperature purified water, add one level tablespoon of salt (2 grams). Stir until fully dissolved, creating a 2% saline solution.
3. Ferment the vegetables – Fill the jar with the chopped vegetables, leaving space for the brine. Pour the brine over them until submerged.
4. Allow fermentation – Seal the jar and store it in a stable, dark environment at 20-22°C (68-72°F). Check daily, loosening the lid slightly to release gases.
5. Storage – Fermentation time varies between 3-10 days, depending on the vegetable type. Once the desired flavor and texture develop, refrigerate to slow down fermentation. For optimal probiotic benefits, wait 2-3 weeks before feeding.

Recommended serving size for dogs

Introduce fermented vegetables gradually. Start by adding a few drops of the juice to the dog’s food, then increase the amount slowly. Eventually, replace part of the usual vegetable portion with fermented alternatives.

How to enhance fermented vegetables for better health

Boost the nutritional value by adding safe herbs and supplements like dill, garlic, parsley, nettle, peppermint, turmeric, beet powder, or spirulina. Dogs with kidney issues or on specialized diets should receive lower salt concentrations—or ferment without salt while ensuring proper storage.

When should dogs avoid fermented vegetables?

While probiotics for dogs offer many benefits, some dogs require caution when consuming fermented vegetables:

• Dogs with kidney disease – Fermented foods contain sodium, which should be minimized for dogs with kidney problems.
• Allergic dogs – Fermented foods increase histamine levels, potentially worsening allergy symptoms.
• High-carb diets – If a dog’s diet is already high in carbohydrates, too many fermented vegetables may lead to digestive discomfort.
• Dogs with acid reflux – While fermented vegetable juice may help regulate stomach acid, excessive amounts can irritate the stomach lining.

Introducing fermented vegetables safely

If your dog does not fall into any of the above categories, introduce fermented foods gradually. Begin with a few drops of juice, then increase portions over time.

Homemade fermented vegetable recipes for dogs

Other natural probiotic sources for dogs

Brewer’s yeast

Brewer’s yeast (Saccharomyces cerevisiae) functions as both a probiotic and prebiotic, supporting gut health by encouraging the growth of beneficial bacteria while suppressing harmful microorganisms. It is particularly helpful for dogs recovering from antibiotics or digestive issues.

Turkey Tail mushroom (Trametes versicolor)

This medicinal mushroom is known for its prebiotic and probiotic properties. Its beta-glucans and polysaccharides nourish beneficial gut bacteria and support immune function. Studies show that Turkey Tail mushrooms can reduce gut inflammation and improve microbial diversity.

Among our products, K9 INUExtra® contains both brewer’s yeast and Turkey Tail mushroom, offering a comprehensive probiotic solution for dogs.

The role of probiotics for dogs

Fermented vegetables provide a natural source of probiotics for dogs, helping balance gut flora and improve digestion. However, they should complement—not replace—a well-rounded diet. By incorporating probiotics for dogs through fermented foods, pet owners can support their canine companion’s digestion, immune function, and overall health naturally.

If you’re interested in living with a dog, various dog sports, or our immune-boosting products, you can read more by following the links.