Synopsis

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

Bifidobacterium lactis is a probiotic bacterium that has been investigated for its potential to support individuals with lactose intolerance. The scientific justification for its use is based on its ability to produce the enzyme β-galactosidase (lactase), which helps break down lactose into more digestible sugars, glucose and galactose. Several in vitro and animal studies have demonstrated that B. lactis can enhance lactose digestion, and some human clinical trials have explored its effectiveness in reducing symptoms of lactose intolerance, such as bloating, gas, and diarrhea.

However, while the mechanistic rationale is strong, the clinical evidence is limited and somewhat inconsistent. Some small-scale human studies have reported modest improvements in lactose tolerance and symptom reduction when B. lactis is consumed with dairy products, often as part of a multi-strain probiotic supplement or in fermented dairy foods like yogurt. These effects are generally attributed to the temporary increase in lactase activity in the gut, as well as possible alterations in the gut microbiota that favor lactose digestion.

Despite these promising findings, larger and more rigorous clinical trials are needed to establish a clear benefit and to determine the optimal strains, dosages, and formulations. As a result, the evidence supporting the use of Bifidobacterium lactis for lactose intolerance is rated as moderate (2 out of 5), indicating preliminary scientific support but not yet sufficient for strong clinical recommendations.

More about bifidobacterium lactis
More about Lactose Intolerance

Other ingredients used for Lactose Intolerance

Other health conditions supported by bifidobacterium lactis

Products containing bifidobacterium lactis