abstract bowel under magnifying glass. it shows bacteria of normal flora

abdomen abstract alternative anatomy bacillus bacterial belly biology capsule colony constipation diagnosis diarrhea diet digestion digestive disease dysbacteriosis flat glass healthcare histology ileum illness internal intestinal intestines isolated lactobacilli magnifying medical medicament medication medicine microbes microbiology microbiota microflora microorganism norm nutrition nutritional pharmacology positive prebiotic probiotic research science system vector