Amounts served and consumed of school lunch differed by gender in Japanese elementary schools

School lunches serve to improve nutritional status and to promote the health of children. The purpose of this study was to investigate the portion sizes of school lunches served and consumed in Japanese elementary schools. In addition, gender difference in servings and consumption were also studied. A cross-sectional study was undertaken between October 2007 and February 2008 in schools located in Tokyo and Okayama, Japan. A total of 192 fifth-grade children attending four elementary schools participated in this study. Weighed plate waste methods and observation were used to collect dietary data for two non-consecutive days. The proportion of children who chose staple foods along with main dishes and/or side dishes for at least one day was higher in boys than in girls (respectively, for staple food: 42.1% vs. 9.3%, for main dish and/or side dish: 68.4% vs. 44.3%, P < 0.001). The ratio of initial amount served to amount offered was 0.88 ± 0.11 for boys and 0.84 ± 0.10 for girls (P < 0.05). The ratio of amount consumed to amount offered was 1.04 ± 0.19 for boys and 0.88 ± 0.12 for girls (P < 0.001). Weight was related to amount consumed both in boys (r = 0.222, P < 0.05) and in girls (r = 0.201, P < 0.05). These findings suggest that the nutritional standards of school lunch programs should take into account gender differences. Clearly, boys were more likely to consume more than the initial amounts served due to their higher propensity to take second helpings. Boys feel few reservations about taking second helpings to adjust their total intake. However, school lunch plans should take into consideration girls' reluctance to do so, by serving appropriate initial portion sizes

Restaurant Industry Practices to Promote Healthy Sustainable Eating: A Content Analysis of Restaurant Websites Using the Value Chain Approach

The purpose of this study is to help researchers and restaurant owners gain an understanding of healthy sustainable initiatives within restaurant businesses. This study applied a content analysis of 93 restaurant chains&rsquo; websites with a systematic coding procedure. The study identified fifteen healthy sustainable initiatives under a value chain framework, four of which follow value chain dimensions: sourcing, production, marketing, and service. The most frequently mentioned healthy sustainable practice was presenting nutrition-related information, followed by providing healthy menu options and using organic/natural produce. Sit-down restaurants were more likely to engage in healthy sustainable eating initiatives than were fast-food restaurants (e.g., increasing the availability of healthy options, smaller/reduced portion sizes, using fresh and local food, and using healthy cooking methods). This study contributes to the restaurant/foodservice management and food marketing literature by showing a comprehensive picture of what U.S. restaurant chains are doing to promote healthy sustainable eating. The findings can be used as a benchmark tool for practitioners to evaluate and develop healthy sustainable restaurant initiatives and as the foundation of measurement items for scholars

Factors Influencing Customer Decisions to Use Online Food Delivery Service during the COVID-19 Pandemic

Despite the popularity of online food delivery systems in the foodservice industry, there have been few studies into customers&rsquo; decision-making process to use online food delivery services during the Coronavirus disease (COVID-19) pandemic. This study applied the technology acceptance model (TAM) to examine the factors affecting customers&rsquo; intention to use online food delivery services. Results showed (a) the perceived usefulness affects customer&rsquo;s online food delivery usage directly and indirectly through customer attitude; (b) enjoyment and trust are also key factors determining behavior intention toward customer attitude using online food delivery services; (c) positive relationship between social influence and customer attitude; and (d) a positive relationship between customer attitude and behavior intention in the online food delivery service context. These findings provide theoretical and managerial implications that contribute to the online food delivery service industry