Activia Kefir Consumption in Real-world Setting
KefirSelf
A Post-launch Study in Spain Assessing Self-perceived Health Benefits and Gut Microbiota Following 2 Weeks Activia Kefir Consumption in Real-world Setting
1 other identifier
observational
550
1 country
3
Brief Summary
The study aims at generating first real-world insights into how consumers perceive the benefits of consuming Activia Kefir on their digestive wellbeing, overall wellbeing, and to explore its potential effects on the gut microbiome.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Sep 2026
Shorter than P25 for all trials
3 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 24, 2026
CompletedFirst Posted
Study publicly available on registry
August 27, 2026
CompletedStudy Start
First participant enrolled
September 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2026
Study Completion
Last participant's last visit for all outcomes
December 1, 2026
August 27, 2026
August 1, 2026
3 months
August 24, 2026
August 24, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
Gastrointestinal (GI)-wellbeing (single-item question)
Difference between after consumption and baseline
After 2 weeks of study product consumption
Stool consistency (Bristol stool scale, single-item)
Difference between after consumption and baseline
After 2 weeks of study product consumption
Stool frequency (number of stools/week, single-item)
Difference between after consumption and baseline
After 2 weeks of study product consumption
Digestive symptoms frequency questionnaire (DSFQ, frequency of 4 symptoms: abdominal pain/discomfort, bloating, flatulence, borborygmi)
Difference between after consumption and baseline
After 2 weeks of study product consumption
Secondary Outcomes (3)
PROMIS global health questionnaire (10-item, includes questions about emotional state fatigue, pain, general health, quality of life, physical health, mental health, satisfaction social activities, usual activities, and everyday physical activities)
After 2 weeks of study product consumption
WHO wellbeing questionnaire (5-items, includes questions about cheerful/good spirits, calm/relaxed, active/vigorous, feeling fresh/rested, daily life with things that interest me)
After 2 weeks of study product consumption
Perceived resilience (using the 2-item Connor-Davidson Resilience Scale (CD-RISC)-2)
After 2 weeks of study product consumption
Study Arms (1)
Consumers of Activia Kefir
Interventions
Consumption of 280 mL (1 bottle) Activia Kefir drinkable per day during the two-weeks study period and collection of 2 stools samples using a collection kit at participant's home (before and after product consumption)
Eligibility Criteria
The study will include male and female participants aged 18 years and older at the time of screening. Both current (Activia) kefir consumers and individuals who are new to (Activia) kefir consumption will be eligible for participation.
You may qualify if:
- Males and females aged 18 years and older at the time of screening;
- Willingness to consume Activia Kefir and complete the requested questionnaires;
- Living in the designated locations in Spain, able to read and write in Spanish;
- Have a personal electronic device compatible and connectable to internet (i.e., computer, laptop, smartphone) to fill the questionnaires;
- Signed informed consent.
You may not qualify if:
- People that currently participate in another study with (dairy) investigational or marketed products;
- Severely immunocompromised individuals (e.g., post-transplant, advanced HIV/AIDS, undergoing chemotherapy);
- Individuals with known allergies or intolerances to product ingredients. For lactose maldigestion, kefir may improve tolerance, so individuals who are aware of their condition and still wish to participate can be included.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Mmr Research Worlwide B.V
Barcelona, Spain
Mmr Research Worlwide B.V
Madrid, Spain
Mmr Research Worlwide B.V
Valencia, Spain
Biospecimen
Stool samples from general population. Stool samples are collected for gut microbiota analysis: no human genetic analysis is performed (bacterial DNA only).
Central Study Contacts
Danone Global Research & Innovation Center
CONTACT
Study Design
- Study Type
- observational
- Observational Model
- OTHER
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 24, 2026
First Posted
August 27, 2026
Study Start (Estimated)
September 1, 2026
Primary Completion (Estimated)
December 1, 2026
Study Completion (Estimated)
December 1, 2026
Last Updated
August 27, 2026
Record last verified: 2026-08
Data Sharing
- IPD Sharing
- Will not share