More and more studies show that gut health and the intestinal microbiota play a crucial role in the immune system and, consequently, in allergic reactions. If you suffer from food, skin, or seasonal allergies, it’s worth learning how probiotics can help your body alleviate their symptoms.

How do allergies develop?

Allergies are an excessive immune system reaction to substances that are not inherently harmful, such as pollen, animal dander, dust mites, certain foods, or chemicals found in cosmetics and detergents. In healthy individuals, exposure to allergens causes no symptoms, but in allergic people, the immune system mistakenly identifies them as threats and triggers a defensive response.

An allergic reaction begins when the body first comes into contact with an allergen. The immune system recognizes it as a potential danger and starts producing IgE antibodies. These antibodies attach to mast cells and basophils, which store chemical mediators, including histamine. Upon re-exposure to the same allergen, histamine and other inflammatory substances are released, leading to allergy symptoms.

Probiotics as allergy support

Few people realize that a significant part of the immune system resides in the intestines. This is where immune cells mature and learn to distinguish harmful substances from harmless ones. A healthy gut microbiota supports this process, while its disruption can lead to excessive immune reactions — that is, allergies.

One of the key mechanisms through which probiotics help manage allergies is by strengthening the intestinal barrier. In healthy intestines, epithelial cells form a tight barrier that prevents allergens from entering the bloodstream. When the microbiota is disturbed, the gut becomes more permeable, increasing the risk of allergic responses. Probiotics support the regeneration of the intestinal lining and help maintain barrier integrity.

Additionally, probiotics have anti-inflammatory properties, which play an important role in alleviating symptoms of skin and food allergies. By reducing inflammation, they make the immune system less prone to overreaction, helping to decrease allergy severity.

See also: Narex Caps with Narine strain

Which probiotic strains are most effective?

Not all probiotics work the same way — it’s important to use strains proven to support immunity and reduce allergic symptoms. Several well-researched probiotic strains have been shown to help regulate the immune response and support gut microbiota balance.

One exceptional strain known for its immune-modulating and anti-allergic effects is Lactobacillus acidophilus n.v. Er 317/402 Narine. This unique strain can effectively colonize the intestines and restore microbial balance. It helps regulate immune function and reduce the body’s hypersensitivity to allergens. Narine has been shown to relieve symptoms such as hay fever and eye irritation while improving gut microbiota health — a foundation of strong immunity.

Other helpful strains include:

• Lactobacillus rhamnosus GG – one of the best-studied strains, known for strengthening the gut barrier and reducing skin allergy symptoms such as atopic dermatitis. Research suggests it may also lower the risk of allergies in children when used during pregnancy and breastfeeding.

• Bifidobacterium lactis – supports the immune system and helps reduce inflammation associated with allergies. It is particularly effective against food allergens and supports healthy digestion.

Using the right combination of strains — such as Lactobacillus acidophilus Narine, L. rhamnosus GG, and B. lactis — can significantly reduce allergic symptoms and improve gut and immune health.

How to use probiotics to reduce allergy symptoms

Probiotics do not work overnight — consistent use is essential. They should be taken for several weeks or, ideally, long-term to allow the gut microbiota to rebuild and the immune system to stabilize. Regular supplementation helps reduce excessive immune reactions to allergens.

To ensure probiotics thrive, provide them with prebiotics — natural food for beneficial bacteria. Include plenty of fiber from vegetables, fruits, whole grains, and fermented foods like yogurt, kefir, or sauerkraut. Avoid excess sugar and highly processed foods, which can harm gut flora.

People with seasonal allergies can start probiotic supplementation several weeks before pollen season to reduce reaction severity. Those with food allergies should use probiotics regularly to strengthen the gut barrier and lower the risk of unwanted dietary reactions.

Allergies and probiotics

Gut health has a major impact on immunity and allergic responses. Probiotics can support the body by reducing immune overreaction and helping restore a balanced microbiota. If you struggle with allergies, consider adding probiotics to your daily routine and observe how they affect your well-being.