Friendly bacteria, Lactobacillus casei. A rod-shaped gram-positive, non-sporing, non-motile, obligate anaerobe, which inhabits human intestinal tracts. - HD Stock-Video

It is beneficial to human health eg improves and promotes digestion. Some strains of the bacteria help control diarrhoea, others have an anti-inflammatory effect on the gut. Other advantageous effects include reducing lactose intolerance, alleviating constipation, and even modulation of the immune system. Numerous strains have been proven to be probiotics, that is according to the World Health Organization, are "live microorganisms which when administered in adequate amounts confer a health benefit on the host." Because it is lactic acid producer, it has several applications in biotechnology and in the food industry. Recorded using Differential Interference Contrast with a horizontal field of view of 75 micrometres.