Degree of Digestilbility
Conditions
Keywords
Duckweed protein, protein, degree of digestibility, whey protein
Brief summary
This study aims to study the digestibility of isolated duckweed protein. The digestibility of the isolated duckweed protein will be compared to an isolated benchmark protein whey. Objective: The primary objective is to investigate the digestibility of isolated duckweed protein and the isolated benchmark protein whey. Study design: The study is a cross-over, double blind, controlled trial in which study participants will visit the research facility on two occasions under fasting conditions. Subjects will receive two protein sources in randomized order with a washout period of one week. Blood will be collected via a catheter before and up-to 3 hours after protein consumption. Study population: We aim to include 12 healthy volunteers aged 18-50 years. Intervention: Study participants will receive 20 grams of isolated duckweed protein and the isolated benchmark protein whey. Main study parameters/endpoints: The main study parameter is blood amino acids measured before and after consumption of 20 g protein.
Interventions
DIETARY_SUPPLEMENTDuckweed protein
20 grams isolated protein
DIETARY_SUPPLEMENTWhey protein
20 grams isolated protein
Sponsors
Wageningen University and Research
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)
Eligibility
Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
* Body mass index (BMI) between 18 and 25 kg/m2 * Having veins suitable for blood sampling via a catheter (judged by study nurse/ medical doctor)
Exclusion criteria
* Any metabolic, gastrointestinal, inflammatory or chronic disease (such as diabetes, anaemia, hepatitis, cardiovascular disease) * History of gastro-intestinal surgery or having (serious) gastro-intestinal complaints * History of liver dysfunction (cirrhosis, hepatitis) or liver surgery * Kidney dysfunction (self-reported) * Use of medication that may influence the study results, such as gastric acid inhibitors, laxatives, stomach protectors and drugs that can affect intestinal motility * Anaemia (Hb values \<7.5 for women and \<8.5 for men) * Reported slimming, medically prescribed, vegan/vegetarian or other extreme diets or the use of protein supplements * Not willing to give up blood donation during the study * Current smokers * Alcohol intake ≥4 glasses of alcoholic beverages per day * Pregnant, lactating or wishing to become pregnant in the period of the study (self-reported) * Abuse of illicit drugs * Food allergies for products that we use in the study * Participation in another clinical trial at the same time * Being an employee of the department Consumer Science & Health group of Wageningen Food & Biobased Research
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in blood free amino acids (e.g. Degree of digestibility) | 20 gram protein will be consumed and blood samples will be taken before and up to 3 hours after protein consumption | postprandial test, determine free amino acids in blood samples collected before and after a postprandial challenge test |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| change in plasma insulin | 20 gram protein will be consumed and blood samples will be taken before and up to 3 hours after protein consumption | before and after a postprandial challenge test |
| change in plasma glucose | 20 gram protein will be consumed and blood samples will be taken before and up to 3 hours after protein consumption | before and after a postprandial challenge test |
Other
| Measure | Time frame | Description |
|---|---|---|
| change in visual analogue scale (VAS) scores on intestinal complains | daily from day1 until day3 after the intervention | On a scale ranging from worst-best outcome (higher scores are better) |
Countries
Netherlands
Outcome results
None listed