Ключевые слова: bacteria, beneficial, beneficial microorganisms, bifidobacterium, cellular, digestion, digestive system, gastrointestinal, gut health, gut microbiome, gut wellness, health, health concept, healthy digestion, healthy gut, healthy intestinal, healthy lifestyle, human health, immunity, internal organ, intestinal flora, medical illustration, microbiology, microbiota, microscopic view, natural health, nutritional science, organism, probiotic bacteria, scientific, scientific illustration, wellness,