Healthy
Conditions
Brief summary
This research project is aimed at identifying the MCT formulation matrixes that provide the highest ketoindex values and extended half-life, as well as to provide an initial evaluation of the GI tolerability of the various formula. For comparison, ketones salts and esters (food grade) will be also evaluated.
Detailed description
Monocentric, open, randomized, controlled research project. The global research project will include several testing cycles as described in the figure 1. In each cycle, several research products (up to 4) will be tested on up to 20 participants in a partial or full cross-over design. Once cycle 1 is completed, blood parameters will be analysed and ketoindex will be calculated as area under the curve (AUC) of total ketones (BHB + AcA) over 4h / quantity of ingested MCTs in g. Based on ketoindex and ketones Thalf (T1/2: time to reach half of AUC-infinite of total ketones) values, new products will be developed for cycle 2.
Interventions
DIETARY_SUPPLEMENT2.5% protein
2.5%
DIETARY_SUPPLEMENTprotein 5%
5%
DIETARY_SUPPLEMENTprotein 10%
10%
DIETARY_SUPPLEMENTprotein 15%
15%
DIETARY_SUPPLEMENTA2: Peptamen 1.5 Vanilla without Breakfast
Peptamen withoug breakfast
DIETARY_SUPPLEMENTB2: only breakfast (no product)
only breakfast
DIETARY_SUPPLEMENTC2: 5% protein with breakfast
C2: 5% protein consumed with breakfast
DIETARY_SUPPLEMENTD2: 5% protein 30 min before breakfast
D2: 5% protein consumed 30 min before breakfast
Sponsors
Société des Produits Nestlé (SPN)
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
1. Age: 18-50 years 2. Healthy men and women, based on the medical screening visit and medical history 3. BMI in the normal and overweight range 18.5 ≤ BMI ≤ 27. 4. Able to understand and to sign a written informed consent prior to study entry
Exclusion criteria
1. Any medication possibly impacting the postprandial glucose and insulin response (on anamnesis, to the opinion of the medical expert) 2. Any medication impacting dietary fat absorption and metabolism or impacting postprandial glucose and insulin response, to the opinion of the medical expert 3. Pregnancy (on anamnesis) and/or lactation 4. Known food allergy and food intolerance 5. Individuals undergoing either dietary or exercise mediated weight loss program prescribed by a health care professional 6. Individuals under ketogenic diets, or taking regular ketones products such as MCT, ketone esters or ketone salts (calcium, magnesium, sodium, potassium) 7. Alcohol intake higher than 2 servings per day. A serving is 0.4 dl of strong alcohols, 1 dl of red or white wine, or 3 dl of bier 8. Having given blood within the last month, or willing to make a blood donation until one month following the end of the study 9. Participant having a hierarchical link with the research team members 10. Not expected to follow the protocol. 11. Smokers unable to stop for the day of the visit
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| KetoIndex - plasma concentration | 4 hours | KetoIndex calculated as area under the plasma concentration versus time curve (AUC) of total ketones (BHB + AcA) over 4 hours after MCT-based products consumption / quantity of ingested MCTs in gram. |
| total ketones (BHB+ACA) - Half-life time | 4 hours | Half-Life time (T ½) calculated as time to reach half of Area under the plasma concentration versus time curve (AUC)-infinite of total ketones (BHB+ACA) after MCT-based products consumption. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Ketones blood kinetics - time to maximum concentration | 4 hours | Time to maximum concentration (Tmax) of total Ketones, BHB, AcA MCT-based products consumption. |
| Ketones blood kinetics - Half-life time | 4 hours | Half-Life time (T ½) measured of total Ketones, BHB, AcA after MCT-based products consumption. |
| Medium chain fatty acid C8 and C10 - plasma concentration | 4 hours | Measure of plasma concentration versus time curve (AUCs) of Medium chain fatty acid C8 and C10 after MCT-based products consumption |
| Medium chain fatty acid C8 and C10 - concentration | 4 hours | Maximum plasma Concentration (Cmax) of Medium chain fatty acid C8 and C10 (and their metabolites) after MCT-based products consumption |
| Medium chain fatty acid C8 and C10 - Time to maximum concentration | 4 hours | Time to maximum concentration (Tmax) of Medium chain fatty acid C8 and C10 (and their metabolites) after MCT-based products consumption |
| Medium chain fatty acid C8 and C10 - Half-life time | 4 hours | Half-Life time (T ½) measured of Medium chain fatty acid C8 and C10 (and their metabolites) after MCT-based products consumption |
| Ketones blood kinetic - Plasma concentration | 4 hours | (Total Ketones, BHB, AcA) measured as plasma concentration versus time curve (AUCs) after MCT-based products consumption |
| Glucose and insulin - peak plasma concentration | 4 hours | Measure of maximum plasma concentration (Cmax) of glucose and insuline after MCT-based products consumption |
| Glucose and insulin - time to maximum concentration | 4 hours | Measure of time to maximum concentration (Tmax) of glucose and insuline after MCT-based products consumption |
| Glucose and insulin- Half-life time | 4 hours | Measure of Half-life time (T½) of of glucose and insuline after MCT-based products consumption |
| Gastro-intestinal tolerability assessment | 24 hours | Gastro-intestinal tolerability assessment with visual analogue scales for each symptom of interest (i.e.) 1) Abdominal discomfort , 2) Decreased appetite, 3) Gastric reflux, 4) Nausea, 5) Diarrhea, 6) Headache). Each scale are from 0 (better outcome) to 100 (worst outcome). |
| Adverse event incidence | 24 hours | Adverse events incidence |
| Glucose and insulin - plasma concentration | 4 hours | Measure of plasma concentration versus time curve (AUCs) of glucose and insuline after MCT-based products consumption |
| Ketones blood kinetics - peak plasma concentration | 4 hours | Peak Plasma Concentration (Cmax) of total Ketones, BHB, AcA MCT-based products consumption. |
Countries
Switzerland
Outcome results
None listed