Pet allergies can severely impact everyday life: Sneezing attacks, a stuffy nose, itchy eyes, or even shortness of breath are commonplace for many allergy sufferers. The good news: Probiotics can help regulate the immune system's allergic response. In this article, we'll show you which probiotics are particularly effective for pet allergies, how they work, and how you can use them specifically. We'll focus on the strains Lactobacillus paracasei LP-33 and GMNL-133 , which have shown promising results in studies.
What is a pet allergy?
A pet allergy is actually a reaction to certain proteins found in the saliva, sebum, or urine of animals. These allergens adhere to pet hair and thus enter the air. As soon as they are inhaled, the immune system reacts hypersensitively. Allergies to cats, dogs, horses, and rodents are particularly common.
Symptoms of a pet allergy:
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Sneezing and runny nose
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Blocked nose (allergic rhinitis)
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Itchy or red eyes
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Skin rashes or eczema
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Asthma-like symptoms (especially with prolonged exposure)
How do probiotics help with allergies?
Probiotics are live microorganisms that have a positive effect on health, particularly on the immune system and intestinal flora. Studies show that a healthy intestinal flora promotes immune system balance and can reduce excessive allergic reactions.
The connection between gut health and allergies is based on the so-called gut-skin-immune system axis . When the gut flora is disturbed (e.g., due to antibiotics, stress, or an unhealthy diet), dysregulation of the immune system is more likely to occur – which promotes allergic reactions.
Mechanisms of action of probiotics in pet hair allergy:
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Regulation of the immune response : Certain probiotics reduce the release of histamine and pro-inflammatory cytokines.
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Strengthening the intestinal barrier : Less permeability ("leaky gut") leads to lower allergen exposure.
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Displacement of harmful germs : Positive bacteria inhibit the growth of pathogenic microbes.
The most effective probiotics for pet allergy
1. Lactobacillus paracasei LP-33
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Effect: Studies show that LP-33 reduces inflammation in the nose and eye area. The symptoms of allergic rhinitis and pet allergies can be significantly alleviated.
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Study findings: A double-blind, placebo-controlled study with 425 participants showed a significant improvement in quality of life in people with seasonal and perennial allergic rhinitis and pet allergy.
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Application: In the form of capsules or probiotic supplements, daily for several weeks.
2. Lactobacillus paracasei GMNL-133
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Effect: This strain exhibits particularly strong immunomodulatory effects. It can reduce Th2-dominated immune reactions (such as those found in allergies).
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Study situation: Animal experiments and human studies have shown reduced IgE levels and increased tolerance to allergens, including those of pet hair allergies.
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Application: Often in combination with other probiotics, in the form of powders or capsules.
Other helpful probiotic strains for allergies
| Probiotic strain | Effect on allergies | Proof of study | Application form |
|---|---|---|---|
| Lactobacillus rhamnosus GG | Strengthens intestinal barrier, reduces inflammation | Yes | Capsules, powder |
| Bifidobacterium lactis BB-12 | Effective for allergic rhinitis | Yes | Combination products, yogurt |
| Lactobacillus reuteri | Inhibits allergic reactions | Partially | Drops, capsules |
| Lactobacillus acidophilus | Stabilizes immune system | Restricted | Capsules |
| Bifidobacterium longum | Supports immune balance | Yes | Capsules, combination preparations |
Studies & scientific findings
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LP-33 : The above-mentioned study (Wassenberg et al., 2007) shows that 30 days of taking LP-33 resulted in significantly reduced symptoms.
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GMNL-133 : A study from Taiwan (Chen et al., 2020) documented that GMNL-133 positively influences the ratio of Th1/Th2 cells.
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Meta-analyses : Various reviews suggest that probiotics could play an important role in the prevention and treatment of allergic diseases.
Instructions for use: How to use probiotics correctly for pet hair allergies
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Regular intake : Probiotics take time to take effect. Plan on at least 4–8 weeks.
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Empty stomach intake : Many probiotics work better when taken before meals.
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Combination with a high-fiber diet : Fiber serves as food for probiotics and promotes their colonization in the intestine.
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Avoid antibiotics (if possible) : These can severely damage the intestinal flora and reduce the effectiveness of probiotics.
Side effects and safety
Probiotics are generally considered safe, especially in healthy people. In rare cases, they may cause bloating or mild digestive discomfort, which is usually temporary.
People with immune deficiencies should consult a doctor before taking it.
Conclusion: Probiotics as a natural aid for pet hair allergies
Probiotics offer a promising, natural option for alleviating pet allergies. Studies have shown that the strains Lactobacillus paracasei LP-33 and GMNL-133 , in particular , can modulate the immune system and alleviate allergic symptoms. In combination with a gut-friendly diet, they can help stabilize the immune system and improve quality of life in the long term.
If you suffer from a pet allergy, it's worth incorporating the targeted use of probiotics into your daily routine. It's best to talk to your doctor or alternative practitioner to find the right product and dosage.
