Lactose intolerance is a common condition caused by lactase deficiency and may result in symptoms of lactose malabsorption (bloating, flatulence, abdominal discomfort, and change in bowel habits). As current data is limited, the aim of our study was to assess the efficacy of probiotics with a β-galactosidase activity on symptoms of lactose malabsorption and on the lactose hydrogen breath test (LHBT). The study group comprised eight symptomatic female patients with a positive LHBT. Patients were treated for 6 months with a probiotic formula with β-galactosidase activity (Bio-25, Ambrosia-SupHerb, Israel). All patients completed a demographic questionnaire as well as a diary for the assessment of symptom severity and frequency at entry, every 8 weeks, and at the end of the treatment period. Measurements of hydrogen (H2) levels (parts per million, ppm) at each of these time points were also performed. End points were a decrease of 50% in symptom severity or frequency, and the normalization (decrease below cutoff point of 20 ppm) of the breath test. Mean age and mean body mass index (BMI) were 36.4 ± 18.6 years and 23.2 kg/m2, respectively. Compared to baseline scores, the frequency of most symptoms, and the severity of bloating and flatulence, improved after treatment. Normalization of LHBT was obtained in only two patients (25%). In this pilot study, Bio-25, a unique formulation of probiotics with β-galactosidase activity, demonstrated symptom resolution in most patients with lactose malabsorption. A larger randomized trial is warranted to confirm these preliminary findings.
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This study was performed in accordance with the principles of the Declaration of Helsinki and Good Clinical Practice (GCP) and was approved by the institutional review board of Rabin Medical Center-Beilinson Hospital (no. 0328-11-RMC). All participants provided written informed consent before enrollment.
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Gingold-Belfer, R., Levy, S., Layfer, O. et al. Use of a Novel Probiotic Formulation to Alleviate Lactose Intolerance Symptoms—a Pilot Study. Probiotics & Antimicro. Prot. 12, 112–118 (2020). https://doi.org/10.1007/s12602-018-9507-7
- Lactose intolerance
- Lactose hydrogen breath test
- Lactase deficiency
- Lactose malabsorption