Eating behaviour
Conditions
Interventions
Two 16-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, Department of Human Nutrition
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age: 18-35 years; 2. BMI: 18.5 – 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) (17); 2. Lack of appetite; 3. Having difficulties with swallowing/eating; 4. Usage of an 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. Having a history of neurological disorders; 10. Having taste or smell disorders; 11. Usage of daily medication other than birth control pills; 12. Pregnant or lactating; 13. Smoking more than one cigarette a day; 14. Being a vegetarian; 15. Being allergic/intolerant for products under study; 16. Working at the division of human nutrition (WUR); 17. Having participated in ‘ProTime’, or current participation in other research from the division of Human Nutrition (WUR); 18. Having a contra-indication to MRI scanning (including, but not limited to): A. Claustrophobia; B. Epilepsy or a family history of epilepsy; C. Serious physical or mental illnesses; D. Pacemakers and defibrillators; E. Intraorbital or intraocular metallic fragments; F. Ferromagnetic implants; G. Presence of any other metal object e.g. in the mouth; H. Being lefthanded.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary objective of this study is to assess the effect of a low protein status on reward response when exposed to sight and smell of food stimuli high and low in protein compared with a high protein status. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. To assess the effect of a low protein status on different aspects of food reward: the explicit liking, the explicit wanting, the implicit wanting and a forced food choice of high and low protein food using the computerized Leeds Food Preference Questionnaire (LFPQ) compared with a high protein status; 2. To assess the effect of a low protein status on protein and energy intake compared with a high protein status. | — |
Contacts
Public ContactS. Griffioen-Roose
Wageningen University Division of Human Nutrition PO Box 8129
Outcome results
None listed