Probiotic-phytonutrient combinations might enhance bowel function and improve various aspects of gut health.

Summary of Research on Probiotic-Phytonutrient Blends

Key Findings:

1. Increased Short Chain Fatty Acids (SCFAs): The study published in Nutrients found that probiotic-phytonutrient blends significantly increased fecal levels of beneficial SCFAs, especially butyrate.

2. Gut Barrier Improvement: Levels of zonulin, a gut barrier-related marker, decreased significantly in overweight participants, suggesting enhanced gut barrier function.

3. Microbial Activity Influence: The authors, led by Ah Young Hwang from HEM Pharma, concluded that these supplements might positively affect gut microbial activity and biomarkers associated with gut barrier health.

Products Studied:

1. Probiotic Blend containing Phytonutrients 1 (PBP1):

   • Ingredients: Lacticaseibacillus rhamnosus HEM648, L. paracasei HEM272, dandelion root powder, and citrus bioflavonoid complex.
   • Dosage: 3 billion CFUs/day.

2. Probiotic-Phytonutrient Blend 2 (PBP2):

   • Ingredients: A mix of several probiotics, including Bifidobacterium animalis subsp. lactis IDCC 4301, L. rhamnosus IDCC 3201, Lactobacillus acidophilus IDCC 3302, and the same phytonutrient complexes.
   • Dosage: 1 billion CFUs/day.

Study Details:

• Design: Randomized, double-blind, placebo-controlled trial involving 60 adults (54 analyzed).
• Duration: 8 weeks.
• Groups: Participants were divided into three groups—Placebo, PBP1, and PBP2.

Results:

• Stool Normalization: Both PBP1 and PBP2 led to increased normal stool types (Bristol Stool Form Scale types 3-5).
• Gastrointestinal Symptoms: Improvements were noted, particularly a reduction in urgency for bowel movements post-meals for the PBP1 group.
• Increased Fecal SCFA Levels: Both products showed significant increases in SCFA levels, especially butyrate.
• Metabolic Changes: Researchers observed decreased tryptophan levels and increased indole metabolites, indicating a microbiome-mediated conversion.

Microbiome Analysis:

• Increased abundances of specific microbes (e.g., Prevotella, Eubacterium, Oscillibacter) were linked to carbohydrate fermentation, correlating with SCFA production and zonulin reduction.

Conclusion:

The study suggests that probiotic-phytonutrient supplementation might enhance gut health by modulating the microbiome and improving intestinal barrier function. However, the authors emphasized the need for further studies to substantiate these findings and assess their clinical significance.

Reference:

Hwang, A.Y. et al. (2026). Effects of Probiotic–Phytonutrient Blends on Defecation, Intestinal Barrier Function, and Gut Microbiota: A Randomized, Placebo-Controlled Trial. Nutrients, 18(13), 2085. doi: 10.3390/nu18132085.