Is ProLon ReSet vegan? 21 February 2023 05:36 Updated ProLon ReSet is mostly vegetarian, although not 100 % vegan. Our bars contain plant-based protein and are made with honey. Related articles What is the difference between ProLon Fast Pack and ProLon ReSet? What foods or drinks can I add to ProLon ReSet? Can I use ProLon ReSet to extend my ProLon 5-day fast? Does ProLon ReSet contain gluten? Can I do ProLon® 5-day if during menstrual cycle?