Two prospective cohorts assessed the relationship between change in the price of fast foods and BMI among US children[ 49 ] and adults;[ 50 ] and one nonrandomized intervention and one prospective cohort assessed the relationship between price increase and consumption of sugar-sweetened beverages among US adults[ 32 ] and children.[ 52 ] Pooling all studies, a nonsignificant trend toward lower BMI was seen, with magnitude similar to the difference in BMI seen in studies of price decreases (per 10% price increase: -0.06 kg/m 2 (95% CI: -0.16 to 0.03) ( S1 Fig ).
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The prospective impact of food pricing on improving dietary consumption: A systematic review and meta-analysis.
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