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Effect of Dairy Protein Yogourt vs Plant-based Yogourt on Body Weight, Body Composition, Bone Health and Gut Microbiota (PROYO)

5. maj 2026 opdateret af: André Marette, Laval University

A New Focus on Protein and the Gut Microbiota to Explain Health Benefits of Dairy Foods

The consumption of an adequate quantity of protein in the diet is essential to maintain a healthy body composition and functioning. It is also well established that all proteins are not equal regarding their ability to promote health benefits. Recently, we have innovated in that matter by showing that under the context of high intake of dietary fat, the dairy protein casein was more effective than a mix of proteins representative of a western diet to prevent body weight gain and insulin resistance. This was explained in part by modifications of the gut microbiota. This finding represents the main conceptual basis of the present research program that is aimed to determine the impact of dairy protein from yogurt compared to a plant-based equivalent on body composition indicators including muscle mass and bone mineral density, in relation to the profile of the gut microbiota, the production of newly discovered protein-derived metabolites, and markers of metabolic health. This program will include a human and an animal component requiring the testing of these variables before and after a standardized intervention. The human component will be a clinical study consisting of a 12-week diet-based weight loss intervention in postmenopausal overweight women being randomly assigned to one of the three following groups: yogurt, plant-based yogurt, or kept on diet without supplements. The animal experimentation will permit to causally determine the implication of the gut microbiota in the protein effects following transfer of the human bacteria to germ free mice and validate the benefits seen in humans. It is anticipated that these two complementary investigative approaches will allow a thorough documentation of the impact of fermented dairy protein on body composition and functioning, a better understanding of the underlying mechanisms, and the identification of new biomarkers to better appreciate related health benefits.

Studieoversigt

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

75

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

    • Quebec
      • Québec, Quebec, Canada, G1V 0A6
        • Rekruttering
        • INAF, Université Laval
        • Kontakt:
        • Ledende efterforsker:
          • André Marette, PhD

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ja

Beskrivelse

Inclusion Criteria:

  • Postmenopausal women (absence of menstruation for at least 1 year and FSH > 40 IU/L)
  • BMI between 27.0 and 39.9 kg/m²
  • Sedentary or moderately active

Exclusion Criteria:

  • Body weight change greater than 5 kg in the 3 months preceding the study
  • Currently dieting or following specific dietary patterns
  • Previous or planned bariatric surgery
  • Food allergies or intolerances (particularly dairy proteins and lactose)
  • Serious or problematic health conditions (e.g., renal insufficiency, diabetes, Cushing's disease, Paget's disease, parathyroid disorders, inflammatory bowel disease, uncontrolled thyroid disease, etc.)
  • Fracture within the past year
  • Hormone therapy
  • Medications affecting bone metabolism (e.g., osteoporosis treatments, anti-estrogen therapy for breast cancer, epilepsy treatments)
  • Antibiotic use within the 6 months preceding the study
  • Use of probiotic supplements (capsules)
  • More than two alcoholic drinks per day
  • Smoking
  • Drug abuse

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Dairy yogurt
Dairy yogurt: two serving daily
Aktiv komparator: Plant-based yogurt
Plant based yogurt: two servings daily
Placebo komparator: No yogurt
No yogurt: zero serving yogurt

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in bone health
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of bone mineral density using Dual X-ray Absorptiometry scan
At baseline and at the end of the intervention (12 weeks)
Change in bone health
Tidsramme: At baseline and at the end of the intrevention (12 weeks)
Assessment of bone turnover biomarkers (osteocalcin, c-telopeptide, Amino terminal propeptide of type 1 procollagen) (all in ng\mL)
At baseline and at the end of the intrevention (12 weeks)
Change in gut microbiota
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of global variation of the fecal microbiota
At baseline and at the end of the intervention (12 weeks)
Change in gut microbiota function
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of short-chain fatty acid (SCFA) in feces
At baseline and at the end of the intervention (12 weeks)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in body weight
Tidsramme: At baseline and at the end of the intervention (12 weeks)
At baseline and at the end of the intervention (12 weeks)
Change in anthropometric measures
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of body mass index (BMI) using weight and height. These two measurements will be combined to calculate BMI in kg/m2
At baseline and at the end of the intervention (12 weeks)
Change in anthropometric measure
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of waist circumference
At baseline and at the end of the intervention (12 weeks)
Change in body composition
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of changes in lean mass, fat mass and visceral fat mass (all in grams) using body composition by Dual X-ray Absorptiometry scan
At baseline and at the end of the intervention (12 weeks)
Change in skeletal muscle health
Tidsramme: At baseline and at the end of the intervention (12 weeks)
muscle strength using handgrip strength tool (kg)
At baseline and at the end of the intervention (12 weeks)
Change in skeletal muscle health
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of physical performance using Timed Up and go Test
At baseline and at the end of the intervention (12 weeks)
Change in skeletal muscle health
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of functionnal capicity using 6-minute walk test)
At baseline and at the end of the intervention (12 weeks)
Change in Resting Metabolic Rate (RMR)
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Change in RMR using Calorimetry Device
At baseline and at the end of the intervention (12 weeks)
Change in Appetite and Satiety
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of leptin and ghrelin (both with same units of measurement)
At baseline and at the end of the intervention (12 weeks)
Change in Appetite and Satiety
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of appetite and satiety using visual analog scale
At baseline and at the end of the intervention (12 weeks)
Change in Eating behaviors
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of eating behaviors using Food Cravings Questionnaire (FCQ-T)
At baseline and at the end of the intervention (12 weeks)
Change in glycemia
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of fasting glucose concentration
At baseline and at the end of the intervention (12 weeks)
Change in insulinemia
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of fasting insulin concentration
At baseline and at the end of the intervention (12 weeks)
Change in lipid profile
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of triglycerides, LDL-cholesterol and HDL-cholesterol
At baseline and at the end of the intervention (12 weeks)
Change in blood pressure
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of systolic and diastolic blood pressure
At baseline and at the end of the intervention (12 weeks)
Change in chronic inflammation
Tidsramme: At baseline and at the end of the intervention (12 weeks)
Assessment of plasma high sensitive C-Reactive Protein (hs-CRP) concentrations
At baseline and at the end of the intervention (12 weeks)

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

1. november 2023

Primær færdiggørelse (Anslået)

30. juni 2026

Studieafslutning (Anslået)

31. december 2026

Datoer for studieregistrering

Først indsendt

5. maj 2026

Først indsendt, der opfyldte QC-kriterier

5. maj 2026

Først opslået (Faktiske)

11. maj 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

11. maj 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. maj 2026

Sidst verificeret

1. april 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • PROYO 2022-108

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

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Kliniske forsøg med Tarmmikrobiota

Kliniske forsøg med Dairy yogurt

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