Australia: Increased acceptance for multiple vegetables was noted during the five weeks of one study and sustained at the three-month followup. Following the study, parents reported that offering the vegetables was “very easy” or “quite easy” with the majority following the instructions provided by the study.

This study recruited 32 families with children between the ages of four and six where low consumption of vegetables was reported. Parents completed an online survey and attended an information meeting prior to participating.

Study data was collected in several ways: two dinner meals served at the research facility during which children could eat as much of the broccoli, cauliflower and green beans as they wished; changes to actual vegetables consumed at home, childcare or school recorded through food diaries; and parents reporting on usual vegetable consumption. Families introduced one vegetable served broccoli, other families tried multiple vegetables. Parents were provided with a voucher to purchase the vegetables and given instructions on portion size and cooking instructions along with tips on how to offer the vegetables. Children were served a small piece of vegetable three times a week for five weeks. A sticker was given as a reward to children trying a vegetable.

Families that offered multiple vegetables recorded an increase in consumption from .6 to 1.2 servings, while no change in consumption was observed in families serving a single vegetable or families that did not change their eating habits.

https://www.sciencedaily.com/releases/2019/09/190909123713.htm