Abstract
In the past 40 years, with the changes to dietary structure and the dramatic increase in the consumption of meat products in developing countries, especially in China, encouraging populations to maintain their previous healthy eating patterns will have health, environmental, and economic co-benefits. Healthy diet education plays an important role in the promotion of people’s healthy behavior. However, in the modern age, the data regarding healthy diets available on the internet is increasing rapidly and is distributed on multiple sources. It is time-consuming for users to learn about healthy diets on the internet: they need to search data on multiple platforms, choose and integrate information, and then understand what they have learned. To help people retrieve and learn healthy diet knowledge more efficiently and comprehensively, this paper designs a knowledge graph to integrate healthy diet information on the internet and provides a semantic retrieval system. In the knowledge graph, five main concepts are defined, including food material, dish, nutritional element, symptom, and crowd, as well as the relationships among them. In addition, Chinese dietary culture elements and traditional Chinese medicine (TCM) theory are also contained in the knowledge graph. The preliminary results show that by using the system, users learn healthy diet knowledge more quickly and comprehensively and they are more inclined to have balanced diets. This work could be regarded as a retrieval and education tool, which can assist healthcare and national sustainable development.
Highlights
The third sustainable development goal of the United Nations is: “Ensure healthy lives and promote well-being for all at all ages” [1]
The purpose of this paper is to provide people with healthy diet knowledge of Chinese diet culture, traditional Chinese medicine (TCM), Western medicine, and nutrition through the Sustainability 2018, 10, 4197 internet, based on new a technology called the knowledge graph
As an approach to national healthy eating education, this work an implemented a semantic retrieval and recommendation application based on the knowledge graph to provide knowledge to users
Summary
The third sustainable development goal of the United Nations is: “Ensure healthy lives and promote well-being for all at all ages” [1]. At the beginning of the study, this work conducted a questionnaire survey on the internet in order to acquire the dietary health status of the Chinese population, which informed the knowledge map construction. Twenty questions were designed, including those addressing dietary health awareness, knowledge, and behaviors of Chinese people, as well as their awareness and treatment history and the influence of TCM. The results of the questionnaire showed that 47.4% of the respondents considered health issues almost every time they ate food, and 50.14% of them sometimes considered health issues; 92.45% actively learned about dietary health knowledge; 79.41% desired to get healthy dietary suggestions from experts; but 72.14% were unable to achieve this because of economic constraints.
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