The Big Breakfast Study
Role of Breakfast Size and Composition for Appetite Control and Energy Balance
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
The aim of this study is to further strengthen our understanding of the role of dietary components (in particular fibre and protein) in a healthy diet. The information gained from this research will lead to better policy advice, particularly in relation to healthy weight management, metabolic control, mental health and intestinal health. It will also lay the foundations to produce healthier primary products and aid the food industry in developing new and healthier products (e.g. products that aid hunger control and satiety). This will be addressed through four interlinked objectives:
O1: Healthy weight management and improved metabolic and mental health O2: Identification of gut bacteria and compounds of relevance to vascular and gut health O3: Linking fibre consumption to intestinal microbial communities and health O4: Mathematical modelling of interactions between diet and gut microbial communities
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
-
Aberdeen, Det Forenede Kongerige, AB25 2ZD
- The Rowett Institute
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- BMI ranging from 27-42 kg/m2;
- those habitually consuming breakfast (at least 5 times a week).
Exclusion Criteria:
- women who are pregnant, planning to be pregnant or breastfeeding
- subjects with food allergy
- diagnosis of diabetes, hypertension, renal, hepatic, haematological disease or coronary heart disease
- having given a pint of blood for transfusion purposes within the last month
- unsuitable veins for blood sampling
- inability to understand the participant information sheet
- inability to speak, read and understand the English language
- those on any prescription medications (other than oral contraceptives)
- those on any specific diet regimes
- those on any weight loss programmes (that may be affecting lifestyle, physical activity and diet).
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Enkelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: High Fibre to High-Protein (HF-HP)
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High fibre/carbohydrate (50% CHO, 35% fat and 15% Protein) with 45% calories at breakfast and 20% evening meal provided and buffet lunch.
Total dietary fibre will be at least 30g/d for 2000kcal intake and provided as a mixed soluble and insoluble fibre sources to maintain palatability of the diet (e.g.
wheat bran, fava bean, lentil, buckwheat).
Andre navne:
• High protein diet (30% protein, 35% fat and 35% CHO) with 45% calories at breakfast and 20% evening meal provided and buffet lunch.
Protein will be a mixed meat matrix to include poultry, fish, red meat, prawns, eggs, dairy.
Total dietary fibre will be no more than 15g/d for 2000kcal intake.
Andre navne:
|
|
Eksperimentel: High Protein to High-Fibre (HP-HF)
|
High fibre/carbohydrate (50% CHO, 35% fat and 15% Protein) with 45% calories at breakfast and 20% evening meal provided and buffet lunch.
Total dietary fibre will be at least 30g/d for 2000kcal intake and provided as a mixed soluble and insoluble fibre sources to maintain palatability of the diet (e.g.
wheat bran, fava bean, lentil, buckwheat).
Andre navne:
• High protein diet (30% protein, 35% fat and 35% CHO) with 45% calories at breakfast and 20% evening meal provided and buffet lunch.
Protein will be a mixed meat matrix to include poultry, fish, red meat, prawns, eggs, dairy.
Total dietary fibre will be no more than 15g/d for 2000kcal intake.
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in Energy Balance
Tidsramme: measured up to day 71 of study
|
Chronic influence on energy balance (body weight, kg)
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measured up to day 71 of study
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Acute effects on appetite after test meals
Tidsramme: Baseline & week 4 of each treatment
|
Appetite questionnaires recorded on Visual Analogue Scales every 30mins on test days
|
Baseline & week 4 of each treatment
|
|
Acute effects on biomarkers of health after test meals
Tidsramme: Baseline & week 4 of each treatment
|
blood samples analysed for Glucose, Lipids and Hormones
|
Baseline & week 4 of each treatment
|
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Acute effects on gastric emptying after test meals
Tidsramme: Baseline & week 4 of each treatment
|
gastric emptying (stable isotope, Octanoic acid labelled breath samples)
|
Baseline & week 4 of each treatment
|
|
Resting Metabolic Rate (RMR) before & after test meals
Tidsramme: Baseline & week 4 of each treatment
|
Chronic influence on metabolism or Thermic Effect of Food (TEF) using indirect calorimetry measurement
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Baseline & week 4 of each treatment
|
|
Faecal sample analysis for gut health
Tidsramme: up to 10 weeks
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Chronic influence on changes in gut microbiota
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up to 10 weeks
|
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Bone Density
Tidsramme: Baseline & week 4 of each treatment
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Dual Energy X-ray Absorptiometry (DXA) Scan to measure fat mass, fat free mass & bone density as part of the 4 compartment model
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Baseline & week 4 of each treatment
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Body Composition
Tidsramme: Baseline & week 4 of each treatment
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Air Displacement Plethysmography (BodPod) to measure body fat as part of the 4 compartment model
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Baseline & week 4 of each treatment
|
|
Total Body Water
Tidsramme: Baseline & week 4 of each treatment
|
Deuterium Dilution to measure Total Body Water (TBW) as part of the 4 compartment model
|
Baseline & week 4 of each treatment
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Alexandra Johnstone, PhD, Senior Research Fellow
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 804
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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