Optinature StomachPlus was specially developed for four-legged friends who exhibit smacking sounds, acid reflux, and nighttime restlessness , and who vomit up yellow mucus after prolonged periods of fasting (especially in the morning). This is often preceded by intensive grass eating . Optinature StomachPlus is well-tolerated and can be used in both dogs and cats. Optinature MagenPlus is a natural mixture developed by veterinarians, based on ground bark of the American red elm and psyllium husks. The feed supplement is mixed with water to form a mucilaginous mixture. This should ideally be administered directly into the animals mouth using the included syringe 30 minutes before feeding. The plant fibers from pectin (apple pomace) and psyllium husks provide a food source for beneficial gut bacteria and, as prebiotics, support the gut microbiome, i.e., a healthy gut flora. This supplementary feed is suitable for all feeding methods and can be used for dogs and cats of all ages.