Evidence supporting the use of: Bifidobacterium
For the health condition: Allergies (respiratory)

Links: Go back one page, Tool main page, Ingredients list, Health conditions list, Body systems list

Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Bifidobacterium, a genus of beneficial bacteria commonly found in the human gut, has been studied for its potential role in supporting or treating respiratory allergies, including allergic rhinitis and asthma. The scientific rationale stems from the observation that the gut microbiota influences systemic immune responses, including those involved in allergic diseases. Several clinical studies and meta-analyses have investigated the effects of probiotics, including Bifidobacterium species, on allergic outcomes, particularly in children.

There is moderate scientific evidence suggesting that certain strains of Bifidobacterium may help modulate the immune system, promoting a balance between Th1 and Th2 immune responses, and potentially reducing the risk or severity of allergic manifestations. Some randomized controlled trials (RCTs) have reported that supplementation with specific Bifidobacterium strains can reduce symptoms or the incidence of allergic rhinitis, though results are inconsistent and often strain-specific. For example, Bifidobacterium longum and Bifidobacterium breve have demonstrated some efficacy in reducing allergic symptoms in small clinical trials.

However, the overall quality and quantity of evidence are limited. Many studies have small sample sizes, short durations, or include mixed probiotic formulations, making it difficult to attribute effects to Bifidobacterium alone. Current guidelines do not universally recommend Bifidobacterium for respiratory allergies, but ongoing research continues to explore its potential. Therefore, the evidence supports possible benefit, but it is not robust or definitive.

More about Bifidobacterium
More about Allergies (respiratory)

Products containing Bifidobacterium

We currently have no products on Vitabase that contain this ingredient.