Probiotics: Preventing Complications of Antibiotic Use
What is the Microbiota?

The term microbiota refers to the entire community of microorganisms that live on and in humans.

The gut microbiota of humans (formerly known as gut flora) is made up of approximately 1000 to 1150 different bacterial species.5,6

An estimated 1014 (one hundred trillion) bacteria reside in the gastrointestinal tract of adults and have important physiological functions in the body related to the maintenance of health and well-being (homeostasis).

The four major phyla of the microbiota of the gut include:5

  • Firmicutes
  • Bacteroidetes
  • Actinobacteria
  • Proteobacteria