It is believed that the COVID-19 pandemic, which has affected people worldwide, can negatively affect the health of young people diagnosed with Autism Spectrum Disorder (ASD). This study aims to investigate the changes in physical activity, time spent sitting, sleeping, and in front of screens, and food habits in young people diagnosed with ASD (n=76) during the two-week COVID-19 pandemic lockdown period in Germany. The Adapted Lifestyle Questionnaire was used to measure the changes before and after the lockdown. During the lockdown period, the frequency and duration of physical activity decreased, their time spent in front of screens, daily sitting and sleep times, consumption of foods such as carbohydrates increased, and consumption of fresh fruits, and vegetables decreased.<p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0107/a.php" alt="Hit counter" /></p>