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The observed number of daily servings of LNDF was subjected to a square root transformation to achieve normally distributed data.
Table 2 shows that the mean daily intakes of all food groups decreased between 2001/02 and 2007, with a decline of almost one serving for LNDF. Modest declines for VF and MA were also observed.
Our findings are promising: when we compared student dietary intakes prior to and following the introduction of a school nutrition policy, we found a marked decrease in the likelihood that students would consume LNDF such as potato chips, candy and pop.