Research On The Health Design Of Diet Products On Narrative Theory

Diet and people’s lives are closely related,scientific nutrition,dietary balance has become a basic requirement for a healthy life.In the past,designers often focus on the single act of "eating" or the "thing" of eating utensils,ignoring the "thing" of healthy eating.In the process of using the product,users directly or indirectly lead to excessive eating,unclean eating and other bad eating habits.Therefore,in order to better participate in health promotion and help users achieve a healthy lifestyle,design needs to draw on the theoretical advantages of other disciplines to enrich health design strategies and methods.Narrative,as a cognitive framework for explaining experiences,can bring clarity to the understanding of vague and unknown issues.In terms of health communication,narratives can make it easier for people to receive health information,construct their own health knowledge framework,and then choose a lifestyle that is conducive to health.Based on these advantages,this paper explores how narrative theory can help designers build a set of health-oriented product design strategies and methods from narrative theory.First,a literature review of health design and narrative theory is conducted to examine the application and historical evolution of narrative theory in the field of design.The similarities and differences between the structures of health communication theory and narrative theory are compared,and the narrative characteristics and narrative structures in health design are analyzed,mainly including narrator,narrative expression,narrated presentation,narratee,and narrative feedback.In addition,we define the concept of diet products,focus the research scope on the diet dimension in lifestyle,analyze the narrative content in healthy diet design cases,analyze the value and intervention points of narrative theory in the product design process of healthy diet products,and propose a health-oriented narrative design process and toolkit hypothesis.At the same time,six dimensions of health state,need,context,cognition,behavior and influence are used as usability evaluation criteria for narrative design to verify the ease of use,health communication,creativity and process of narrative methods and tools in the health design process.Second,an empirical study was conducted to set up an experimental and control group around the theme of healthy eating.Focus groups and co-design workshops were used to compare the results and perceptions of using the outputs of different design groups using common design tools and narrative design tools under the same research theme.The problems of narrative models and tools in practice were compiled and analyzed through observation,questionnaires and in-depth interviews.Based on the experimental participants’ feedback,the strengths and limitations of the narrative design tools: narrative cards,reader portraits,and narrative brainstorming toolkit in design practice are analyzed,and strategies for improving the design tools are proposed.Finally,based on the understanding insights and design concepts produced from the empirical study,we summarize the influencing factors and constraints of narrative content in health design,and propose a health design strategy for diet products based on narrative theory in conjunction with the narrative design model: in the input stage,the audience’s health level and awareness are taken as the horizontal and vertical coordinates,and four types of narratives,namely,active health narratives,preventive narratives,persuasive narratives and evidence-based narratives,are divided.In the output stage,the narrator uses the narrative brainstorming tool to encode health information,find a suitable narrative medium for the recipient,and produce a more effective narrative concept.The case and empirical research results are synthesized to propose the principles of identifiability,enhancement,variability and culture for the health-oriented narrative design of dietary products,providing a new research idea for future dietary health product development.