Adolescents have eating behavior problems such as skipping meals, especially breakfast. This behavior can lead to consumption of foods with high fat and sodium content before lunchtime, resulting in obesity in adolescents. In this study, the frequency, time and menu of meals are among the indicators that will be examined by the researcher. This study used a case control design. The research subjects were divided into two treatment groups and one control group. The results showed that more than half of the subjects ate breakfast every day at 6-7 AM in the morning with a menu of rice and side dishes..

Consumer perception is a condition that can be known, that someone is interested in buying something if it is influenced by the situation he faces. Hygiene and sanitation itself is the first element and an important requirement that must be considered in choosing food so that it is clean and safe. Healthy, safe and quality food is one of the important factors in improving one's health status because the purpose of eating is not just to be full, but needs to be nutritious and can meet the body's needs. Therefore, this study discusses consumer perceptions of hygiene and sanitation on purchasing decisions for food sold by street vendors in the Sumedang Square Tourism Area. This starts from the food processing process, the process of serving food and food storage used by street vendors. The method used in this research is descriptive quantitative with the help of SPSS application to calculate the answers that have been obtained. As a result, significantly (Pvalue < 0.05) street vendor consumers in the Sumedang Square Tourism Area were able to apply their knowledge of hygiene and sanitation in buying food from street vendors.

Elementary school children are children aged 6-12 years and had eating habits depend on their social life at school. Feeding habit in children consisted of mother’s beliefs about feeding, child feeding practices, and children’s eating behavior. children who consumed unhealthy food, such as snacks, relatively experienced low energy or calorie, while children with high consumption of unhealthy food tended to have a significant effect on experiencing health problem. The purpose of this study is to describe the eating habits of elementary school students from carbohydrate and protein sources during the pandemic. This study is a correlational study using a cross-sectional design. The population in this study were elementary school students at Mutiara Elementary School, Garuda Village, Andir District with a total of 95 students as respondents. The data collection tool in this study used a questionnaire. Data were analyzed descriptively. Carbohydrate sources that are often consumed by students are rice (100%), noodles (56.8%) and bread (53.7%). Sources of animal protein that are often consumed are chicken meat (74.7%) and chicken eggs (94.7%). Meanwhile, the most consumed vegetable protein was tofu (81.1%) and tempeh (67.4%). The food consumed by school-age children is less diverse. It is important for schools to provide education about the provision of diverse foods.

Adolescents are prone to nutrition problem, such as the lack of nutrition, overweight, and obesity caused by sedentary behaviours. Adolescents’ activities are influenced by their surrounding environment, such as family, friends, and duration of gadget use. Nutrition Education is a method to help increasing the adolescent’s knowledge about the importance of increasing physical activity and the consequence of sedentary behaviours for adolescents. Knowing the most effective method was the purpose of the study. This study used a quasi-experimental method with control group pre-test post-test design. The study was carried on three groups of adolescents, namely the lecture group, website group, and control group, for two months on school days. The instrument used was ASAQ (Adolescents Sedentary Activity Questionnaire) analysed by one-way ANOVA. The subjects of this study were adolescents aged 15-16 years old. This study used purposive sampling to select the subjects. The results showed that Nutrition Education using the interpersonal lecture method could increase 23.7 points of adolescent knowledge compared to Nutrition Education using the website method (6.2 points). Nutrition Education could increase the adolescent’s knowledge but it did not have a significant effect on adolescent’s physical activity on school days. Some activities of the adolescents were quite high, especially the learning activities of the lecture group (471.7 ± 53.5) and the website group (471.7 ± 53.5). The sleep activity also increased significantly in the lecture group (p = 0.040), website group (p = 0.003), and control group (p = 0.015). Meanwhile, the screen time activity decreased significantly (p = 0.011) in the lecture group due to various factors. Further research related to the factors affecting the duration of adolescent’s screen time on school days needs to be conducted.