Eating behaviour
Conditions
Interventions
Two 14-day fully controlled intervention periods differing in dietary protein intake. These interventions involve consumption of individualized, iso-energetic menus providing either 0.5 g protein/kg b
Sponsors
Wageningen University, Division of Human Nutrition
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age: 18-35 years; 2. BMI: 20.0 - 25.0 kg/m2; 3. Healthy (as judged by the participant).
Exclusion criteria
Exclusion criteria: 1. Restraint eating (men: score > 2.25; women: score > 2.80); 2. Lack of appetite; 3. Having difficulties with swallowing/eating; 4. Usage of a energy restricted diet during the last two months; 5. Weight loss or weight gain of 5 kg or more during the last two months; 6. Stomach or bowel diseases; 7. Kidney disorders; 8. Diabetes, thyroid disease, other endocrine disorders; 9. Prevalent cardiovascular disease; 10. A systolic blood pressure of ≥ 160 mmHg at screening; 11. Usage of daily medication other than birth control pills; 12. For women: pregnant or lactating; 13. Being a vegetarian; 14. Being allergic/intolerant for products under study; 15. Having participated in studies that have used the LFPQ: RiceTime, LunchTime, Smaak-Geur¯, SenSation, and ProStudy, or current participation in other research from the division of human nutrition (WUR).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The difference in protein intake (g) during a 2-day ad libitum-phase following the two interventions. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. The difference in energy intake during the 2-day ad libitum-phase following the two interventions; 2. The difference in subjective appetite ratings during the low protein diet and the high protein diet measured with a visual analogue scale (VAS) hourly during the waking hours of a single 24h period on the last day of the normal protein diet and on the first day and last day of the two interventions; 3. The difference on explicit liking (ratings on VAS), explicit wanting (ratings on VAS), implicit wanting (reaction time in food choice), and food preference (frequency) per food category between the 2 interventions measured with the LFPQ; 4. The difference in systolic blood pressure (measured at the end of each intervention) following the two interventions. | — |
Contacts
Public ContactS. Griffioen-Roose
Wageningen University Division of Human Nutrition PO Box 8129
Outcome results
None listed