* Rationale: Despite the health benefits, children's consumption of vegetables is below the recommendations. Most human food preferences are learned through mere exposure, imitation, and conditioning principles. During the last years, it has become clear that the development of food preferences starts very early in life. Furthermore, preferences that are learned early in life, are relatively stable and may track into adulthood. However, it is unclear how vegetable preferences develop from infancy until young childhood. In order to influence vegetable consumption, it is essential to study the opportunities to develop a preference for vegetable products early in childhood. * Objective: The aim of this study is to investigate the effect of repeated exposure to vegetables compared to repeated exposure to fruit during weaning on short and long term vegetable and fruit intake. Furthermore, the stability of the learned fruit or vegetable preferences and the later food preferences are measured (i.e. vegetable, fruits, sweets). * Study design: In this longitudinal study we will measure the development of preferences for a particular vegetable or fruit type within 4 to 6 months old subjects, during a 19 day exposure period to fruit or vegetables (of which 9 days exposure to the target fruit or vegetable) and 6 months after this exposure period. In addition, we compare the food preferences (fruit, vegetable, sweet foods in general), after 6 months, between infants who were weaned with a variety of fruits and infants who were weaned with a variety of vegetables.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
TRIPLE
Enrollment
101
Infants were weaned with vegetable purees for the first 18 days of weaning. One vegetable type per day. With green beans every other day.
Infants were weaned with vegetable purees for the first 18 days of weaning. One vegetable type per day. With artichoke every other day.
Infants were weaned with fruit purees for the first 18 days of weaning. One fruit type per day. With apple every other day.
Infants were weaned with fruit purees for the first 18 days of weaning. One fruit type per day. With Plums every other day.
Wageningen University
Wageningen, Gelderland, Netherlands
Change in Vegetable and fruit intake
Change in Vegetable and fruit intake from before to after the repeated exposure to it. Measured at day 1 and 2 and day 17 and 18 at the intervention.
Time frame: At the first 19 days of weaning (4-6 months of age)
Intake of the target Vegetables and fruits at 12 months of age.
Vegetable and fruit intake at 12 months of age. Measured in the lab. Fruit group received apple, plum and green beans at 3 different days
Time frame: 6 months after the intervention. Mean age 12 months.
Green beans and Apple intake at 23 months of age.
Green beans and Apple intake at 23 months of age.
Time frame: when infants are 23 months of age
Vegetable and in fruit intake after the repeated exposure
Difference in vegetable intake between vegetable and fruit groups and in fruit intake between the vegetable and fruit groups. Vegetable intake is measured on day 17 and 18 in the vegetable groups and in the fruit groups at day 19 (when fruit groups gets the first vegetable.
Time frame: After the repeated exposure period during the first 19 days of weaning
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