Stunting is a developmental disorder experienced by children due to poor nutrition, recurrent infections, and inadequate psychosocial stimulation. In Jember Regency, the number of stunting cases increased from 2018 to 2019. In addition, restrictions on activities during the COVID-19 pandemic, such as nutrition services at Integrated Healthcare Center, can hamper access to consumption and nutrition and child health services. Therefore, education about stunting is urgently needed to implement appropriate parenting patterns in the mids of limited activities during the COVID-19 pandemic. The Jember community service program was carried out online in the form of a webinar activity that was attended by 30 participants. This study is a quantitative analytic research using a one-group pretest-posttest design. Data that have been analyzed are presented descriptively. There is a significant effect on the pretest and posttest scores in the webinar. It means an increase in participants' understanding after online education is carried out. It is hoped that the people of Jember Regency can apply knowledge about the importance of the first 1000 days of life to prevent stunting.

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