Of the 53 research papers, only 9 addressed weight or
BMI [34–42], and just 6 directly addressed issues of diet
in their study designs [37, 43–47]. 21 of 26 studies which
considered healthy behaviours reported a positive effect of
their program. Of the 6 papers which measured effects on
dietary behaviours, 4 reported positive effects [43, 44, 46, 48].
Of the 18 studies that reported on impacting knowledge and
awareness of healthy behaviours, only one did not find a
positive impact [49]. While these results provide a strong
rationale to pursue a behaviour change intervention focused
on food literacy and healthy food consumption,most of these
studies focused only on single-tiered interventions.