Lactic Acid Bacteria

 Lactic Acid Bacteria  are minor characters featured in Cells that Don't Work.

Appearance
They take the form of actual real-world bacterial cells, little blobs. They have pairs of cow-like horns. They have different colors: black, red, white

Personality
They hold a puppy-like behaviour in which they tend to follow trustworthy cells around. They love to consume purines and other matter. But when the Pylori attacked, one particular bacteria acquired a hostile behaviour, while defeating the enemy.

Background
Lactic Acid Bacteria help the body with immunity, digestion, getting rid of excessive nutrients (purines), and activation of dendritic cells by making polysaccharides. Some even help rebuild the Intestinal Lining. Lactic Acid Bacteria are always cuddly and cute (at least inside Cells at Work!) Lactic Acid Bacteria is also a blanket term to many helpful bacteria.

Trivia

 * They always says “nyuuu!” because of the Japanese word for Lactic Acid Bateria is “NYUUsanikin”.