Eating Behaviour
Conditions
Interventions
The study will consists of three test days, which will be separated by 1 week. These test days involve consumption of pre-determined iso-caloric diets consisting of only sweet products (sweet diet), o
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); 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. Usage of daily medication other than birth control pills; 10. For women: Pregnant or lactating; 11. Smoking (at least one cigarette a day); 12. Being a vegetarian; 13. Being allergic/intolerant for products under study; 14. Having participated in studies that have used the LFPQ: ‘RiceTime’, ‘LunchTime’, ‘ProStudy’, and ‘ProTime’, or current participation in other research from the division of human nutrition (WUR).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Our main outcome measurement is the difference in energy intake (kJ) during an ad libitum test meal after 24h of a sweet diet, a savoury diet, and a control diet. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. To assess the effect of a sweet diet, a savoury diet, and a control diet on subjective ratings of appetite using a VAS; 2. To assess the effect of a 24h sweet diet, a savoury diet, and a control diet on different aspects of food reward (explicit liking, explicit wanting, implicit wanting, relative food choice) of 4 different food categories (low-protein sweet, low-protein savoury, high-protein sweet, and high-protein savoury) using the computerized Leeds Food Preference Questionnaire (LFPQ); 3. To assess the effect of a 24h sweet diet, a savoury diet, and a control diet on cognitive associations of towards 4 different food categories (low-protein sweet, low-protein savoury, high-protein sweet, and high-protein savoury) using a Sorting Paired Features (SPF) task. | — |
Contacts
Public ContactS. Griffioen-Roose
Wageningen University Division of Human Nutrition PO Box 8129
Outcome results
None listed