Periodic Fasting for Treatment of Long Covid in Adults: a Pilot Study

Buchinger-Wilhelmi method, will be administered in an ambulatory setting under physician guidance. It involves an initial bowel cleanse followed by 7-day fasting period. The initial bowel cleanse will be performed according to the standard procedure commonly used for colonoscopy preparation. During the fasting period, subjects will be provided with a dietary energy supply of a maximum of 350 kcal per day, primarily consisting of vegetable broths as well as fresh vegetable juices. Patients will only be allowed to consume calorie-free and unsweetened water or tea in addition to the prescribed diet.