The bifidobacteria group are the most common probiotics in the large intestine. They are comparatively delicate, however, and their numbers can be depleted by toxins in the intestines or by other stressors. Lactobacillus sporogenes (Bacillus coagulans) is a probiotic strain uniquely "preencapsulated" in spores that resist the action of antibiotics and gastric juices; it is non-dairy and is cultured on malt.