International Journal of Food Design - Creative Tastebuds 2021, Nov 2022

Various measures, both by government and commercial entities, are currently taken to promote a more sustainable eating behaviour, in particular in western countries, involving more plant-based foods and less meat. Whereas nudges in this direction previously were predominantly based on both individual and public health recommendations, the arguments for shifts in this direction now include global climate, sustainability and a general lowering of stresses on planetary health. The question is now whether a focus on climate has more effect on our food choices than a singular focus on nutrition and health. We argue that without an understanding of how to prepare delicious plant-based foods with those taste qualities (umami and kokumi) that humans generally crave across cultural and traditional food and taste preferences, it will be difficult to progress significantly towards eating more vegetables and less meat at the population level. In this study, using market-driven data over the period 2016–21 from a major Danish company that annually delivers more 1.5 million meal boxes (Meal Kits) to Danish households, we quantitatively probe the development towards a more plant-based diet among a well-defined set of consumers using Meal Kits. We trace a positive development towards an 80:20 (plant-based:animal-based) energy balance and a concomitant lowering of the carbon footprint for these eaters. Based on an analysis of the recipes that come with the Meal Kits, we propose that the umami and kokumi content of the prepared meals may be a reason for the observed progression, highlighting the importance of taste as a key to changing eating behaviour.

One of the staple foods in a healthy and sustainable diet is legumes. As such, new dietary guidelines around the globe now include higher intakes of legumes. For example, the most recent Danish dietary guidelines recommend a daily intake of 100 g of cooked legumes. This is, however, far from current intakes. The question is then, how should legumes be (or not be) designed to enable this grand dietary transition necessary to contribute to current global sustainability goals? One option has been to produce legume-based meat alternatives. But is this the only way to go? In this opinion, we debate this solution. We outline the processing, health and climate aspect of legume product consumption and argue that we do not have the right information to be able to appropriately design future legume-based foods. We conclude that processing must be part of the solution as we also need to replace red meat with legumes and re-design traditional meals to include legumes or legume products. Finally, to create the necessary lasting impact for planetary and population health, further dimensions such as food culture, equitability and affordability should also be in focus.

In the present article it is proposed that a focus on taste is instrumental for promoting a green transition towards a more sustainable eating behaviour involving a more plant-based diet. In particular, it is pointed out that umami is a key driver for this transition because on the one side green food like vegetables typically lack this basic taste that humans on the other side are genetically primed to crave by evolution. We highlight how a mechanism of synergy operates and can be applied to enhance umami taste by a combination of free amino acids and free nucleotides in the same food item either by culinary preparation or by appropriate food pairing. Examples of the power of umami synergy are given, with some focus on sustainable marine foods like bivalves and cephalopods as well as vegetables. Finally, we demonstrate how umami taste as a driver for sustainable eating can be brought to work in the context of communication to children as well as the general public, e.g., by gamification.

Climate change, food systems and sustainability are nowadays connected themes at many conferences. In response to these societal challenges, we arranged the symposium Creative Tastebuds 2021 to qualify questions and studies across disciplines on how we can all eat sustainably for both pleasure and planet. But how can conferences be designed in ways that build up the new knowledge that are needed today? Based on a critique of the traditional concept of conferences we discuss how alternative designs can contribute to new understandings and new answers. With inspiration from design anthropology, we discuss how knowledge production can be stimulated based on three basic elements: conceptual curation of the event, experimental and interdisciplinary collaboration and a sensuous scenography that fits the content of the conference. The symposium was designed to create an ambitious, interdisciplinary and creative atmosphere, where dialogues were facilitated in innovative ways and across virtual and physical participants. The reasoning is that audiences need to be engaged in new ways in order to foster creativity and be able to invent new solutions. Food conferences are especially suitable for playing with formats, as food is a topic everyone can relate to, and in addition, it points to the sensuous aspects of knowledge exchange. In this article, we explore conference design around the subjects of food and taste through examples of the dialogue-creating instruments used at the symposium Creative Tastebuds 2021.