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Milk Consumption on Digestive Comfort.

NCT04468880 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2022-04-12

No results posted yet for this study

Summary

Lactose, naturally present in milk, can cause digestive discomfort. Delactosed milk is currently the only one alternative to cow's milk for intolerant people. As some of them do not digest milk, it was completely remove from their diet. However, are they really intolerant to lactose or intolerant to milk (or to another of its compounds)? Do β-caseins play a role in this intolerance? β-caseins are proteins naturally present in milk. Two types of β-caseins were identified: A1 and A2. These types differ according to the genetic profile of the cow and depend on the breed. The rare clinical studies interested in this topic suggest that:

1. consumption of milk A1 versus consumption of milk A2 can lead to: softer stools, delayed transit, as well as pro-inflammatory effects in some individuals,
2. consumption of A2 milk significantly reduces gastrointestinal symptoms and improves digestive comfort in lactose intolerant people.

Thus, it would be interesting to be able to assess the effect of a consumption of A2A2 milk type compared to A1A2 milk type, both on the parameters of digestive comfort and on inflammatory parameters.

Conditions

  • Healthy Volunteers

Interventions

OTHER

Group (A1 → A2)

Before each start of consumption of the products under study, a wash-out period of 2 weeks (no consumption of milk) must be observed by the subjects. 25 subjects will consume A1A2 milk for 2 weeks (period 1), then they will consume A2A2 milk for 2 weeks (period 2). During each consumption period, various questionnaires will be completed by the subjects: frequency and consistency of stool, analog visual scales on digestive comfort and dietary surveys. Stool collections will also be carried out.

OTHER

Group (A2 → A1)

Before each start of consumption of the products under study, a wash-out period of 2 weeks (no consumption of milk) must be observed by the subjects. 25 subjects will consume A2A2 milk for 2 weeks (period 1), then they will consume A1A2 milk for 2 weeks (period 2). During each consumption period, various questionnaires will be completed by the subjects: frequency and consistency of stool, analog visual scales on digestive comfort and dietary surveys. Stool collections will also be carried out.

Sponsors & Collaborators

  • Institut Pasteur de Lille

    lead OTHER

Principal Investigators

  • Jean-Michel LECERF, MD · Institut Pasteur de Lille - NutrInvest

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
DOUBLE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-07-20
Primary Completion
2021-04-14
Completion
2021-06-01

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04468880 on ClinicalTrials.gov