Reducing sugar-sweetened beverage consumption is a public health priority, yet finding an effective and acceptable policy intervention is challenging. One strategy is to use proportional pricing (a consistent price per fluid ounce) instead of the typical value-priced approach where large beverages offer better value. The purpose of the present study was to evaluate whether proportional pricing affects the purchasing of fountain beverages at a university cinema concession stand.

Four price strategies for beverages were evaluated over ten weekends of film screenings. We manipulated two factors: the price structure (value pricing v. proportional pricing) and the provision of information about the price per fluid ounce (labels v. no labels). The key outcomes were the number and size of beverages purchased. We analysed data using regression analyses, with standard errors clustered by film and controlling for the day and time of purchase.

A university cinema concession stand in Minnesota, USA, in spring 2015.

University students.

Over the study period (360 beverages purchased) there were no significant effects of the proportional pricing treatment. Pairing a label with the standard value pricing increased the likelihood of purchasing large drinks but the label did not affect purchasing when paired with proportional pricing.

Proportional prices did not significantly affect the size of beverages purchased by students at a university cinema, but adding a price-per-ounce label increased large drink purchases when drinks were value-priced. More work is needed to address whether pricing and labelling strategies might promote healthier beverage purchases.

Doctors play an important role in the identification of nutritional disorders and as advocates for a healthy diet, and although the key tenets of good nutrition education for medical students have been discussed, reports on implementation are sparse. The present commentary responds to a gap in UK medical students’ understanding of nutrition and public health and suggests ways to improve it.

We review literature about nutrition education in medical schools and discuss a 6-week elective in public health nutrition for medical students. We discuss suggested competencies in nutrition and compare means of students’ confidence and knowledge before and after.

A nutrition and public health elective in a UK medical school, discussing advocacy, motivational interviewing, supplements, nutritional deficits, parenteral nutrition, obesity services. We utilised multidisciplinary teaching approaches including dietitians, managers and pharmacists, and students implemented a public health activity in a local school.

Fifteen final-year medical students were enrolled; sixty school pupils participated in the public health activity.

The students were not confident in nutrition competencies before and were taught less than European counterparts. Students enjoyed the course, had improved knowledge, and felt more confident in interviewing and prescribing supplements. Feedback from the local school was positive.

Students in our UK medical school were not confident in their required competencies within the confines of the current educational programme. An elective course can improve medical students’ knowledge. Similar courses could be implemented in other medical schools to improve nutrition and public health knowledge and practice in future doctors.