Kejadian overweight dan obesitas semakin meningkat terutama pada usia 18 – 60 tahun. Berdasarkan WHO (World Health Organization) tahun 2016 semakin banyak usia dewasa mengalami obesitas. Dampak kesehatan akibat dari overweight dan obesitas adalah penyakit tidak menular. Salah satu cara mengatasi obesitas menggunakan teknologi berbasis internet yaitu mobile application. Penelitian ini menggunakan metode Tinjauan Pustaka (Literatur Review), database yang digunakan ScienceDirect, ProQuest, Biomedcentral.com, NCBI tahun 2015-2019. Beberapa tinjauan pustaka memaparkan kefektifan penggunaan m-health dalam menurunkan berat badan. Beberapa aplikasi yang bisa dipakai adalah CHAT, MyFitnessPal App, Vegheton. Aplikasi ini berisikan informasi manajemen pola makan, berisikan gambar menu diet, pemantauan diet mandiri , umpan balik dari kegiatan pola makan. Didapatkan jika perlunya penelitian lebih lanjut dalam penerapan teknologi m-health dalam memanajemen klien dengan obesitas sehingga bisa digunakan dalam jangkauan yang luas. Kata kunci : mobile application, diet, obesitas, overweight

The Covid 19 pandemic has many impacts on various aspects of life of the Indonesian people; one of which is education. One crucial change is in learning methods, which shifts from face to face (offline) to online learning methods). Students need to adapt to the changes because some students have never used online learning methods. The shifting learning method could affect students’enthusiasm for learning, particularly for students who have never used this method before. The objective of this study was to determine the correlation between knowledge of online learning method and learning motivation of nursing students. The research design was cross-sectional. The research respondents were 112 nursing students from four universities in Central Java and Yogyakarta, that were taken by stratified random sampling method. The inclusion criteria are Diploma 3 Nursing students, age 18-25 years old, and students who are undergoing online learning. Data were collected using google form questionnaire which has been tested for validity and reliability. The data analysis used were univariate test for respondent characteristics, and correlation test using Spearman Rho. The results show that the characteristics of respondents are mostly at the age of 18-20 years (81.25%), the educational background of high school is 64.3%, and students who are also working are 2.7%. The most widely used application for online learning is Whatsapp (87.5%). The level of student knowledge is mostly good (54.5%), whereas other 33.9% respondenst are having sufficient knowledge, and 11.6% other are lack of knowledge about online learning. While the level of learning motivation is 0% weak motivation, 33.9% moderate motivation and 59% strong motivation. The correlation between knowledge of online learning method and learning motivation is significant, as shown by the p-value of 0.001 (p<0.005). As conclusion, during the Covid 19 pandemic, students who have good knowledge of learning method have significantly strong learning motivation.