boy drinking yogurt with probiotics bacteria in the gut. probiotic through magnifying glass in flat style

acidophilus bacillus background bacteria bacterial bacteriology bacterium bacteroides benefits bifidobacteria bifidobacterium biological biology biotechnology cell dairy digestion fermentation flat flora food gut health healthcare healthy human illustration lactic lactobacillus lactococcus male man micro microbe microbiology microorganism organism positive prebiotic probiotic probiotics product scheme science set sign symbol vector yoghurt yogurt