Sixteen consumers of sugary drinks were interviewed about their experiences of using four different bottle sizes of cola: 1500 ml, 1000 ml, 500 ml, and 250 ml.
Participants perceived their consumption pace and amount to be greater with the smallest (250ml) compared to larger bottles. The smallest bottles were described as increasing the frequency of drinking occasions and encouraging consumption of numerous bottles in succession.
Various factors associated with the smallest bottles were described as enabling consumption, like the perceived convenience and portability and the greater number of smaller vs. larger bottles available. Further work is needed to experimentally test the use of small bottles as a method for decreasing sugary drink consumption.
Perceived impact of smaller compared with larger-sized bottles of sugar-sweetened beverages on consumption: a qualitative analysis. Mantzari, Hollands, Pechey, Jebb & Marteau, 2017
