This study investigated whether choice-offering is effective in promoting young children’s vegetable intake of familiar vegetables when applied by caregivers in an in-home situation
Participants were randomly assigned to either a 'no-choice' or a 'choice' group. Each child was exposed 12 times to six familiar target vegetables at home during dinner, which is the traditional hot meal including vegetables in The Netherlands. The 'no-choice' group received only one type of vegetable per dinner session, whereas the 'choice' group received two types of vegetables from which to choose, or they could choose to eat both vegetables during the meal. Families received one vegetable parcel including the vegetables for two meals, cooking instructions, a food diary and weighing scales.
Journal article: https://www.sciencedirect.com/science/article/abs/pii/S0195666315001270.