This pilot randomized controlled trial tested the feasibility of yoghurt supplementation (400 mL/day for 3 days) in critically ill adults receiving nasogastric feeds. Twelve patients were enrolled, with high adherence and no safety concerns reported. Yoghurt intake was associated with a significant reduction in systemic inflammation markers, particularly the neutrophil-to-lymphocyte ratio (NLR), and modest shifts in gut microbiome composition. Beneficial commensals such as Lactiplantibacillus plantarum and Bifidobacterium adolescentis were enriched, while opportunistic pathogens like Klebsiella pneumoniae and Clostridioides difficile were depleted. Microbial network analysis revealed increased connectivity and stability in the yoghurt group. Overall, yoghurt supplementation was feasible, safe, and showed preliminary biological signals of modulating inflammation and microbial ecology, supporting the rationale for a larger multicentre trial.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
12
Participants receive standard nasogastric enteral feeding supplemented with 400 mL/day of plain yoghurt (OMFED, Bhubaneswar, India) administered once daily for three consecutive days. The intervention is designed to assess feasibility, safety, and preliminary effects on systemic inflammation and gut microbiome composition in critically ill adults.
All India Institute of Medical Sciences (AIIMS) Bhubaneswar
Bhubaneswar, Odisha, India
Change in neutrophil-to-lymphocyte ratio (NLR) from baseline to post-intervention
NLR is a widely used marker of systemic inflammation in critically ill patients. The primary outcome is the change in NLR between baseline and post-intervention in the yoghurt-supplemented group compared with the control group.
Time frame: Baseline and after 3 days of intervention
Change in albumin-globulin (A/G) ratio
The A/G ratio reflects systemic inflammatory and immune status. The secondary outcome is the change in A/G ratio between baseline and post-intervention.
Time frame: Baseline and after 3 days of intervention
Changes in gut microbiome composition and diversity
Stool samples undergo 16S rRNA sequencing to assess shifts in microbial diversity, enrichment of beneficial taxa, and depletion of opportunistic pathogens.
Time frame: Baseline and after 3 days of intervention
Microbial network connectivity and host-microbe associations
Co-occurrence and correlation network analyses are performed to evaluate changes in microbial community structure and associations with systemic inflammation markers.
Time frame: Baseline and after 3 days of intervention
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