Actinomyces is a genus of gram-positive bacteria that is commonly found in human and animal microbiomes. First described in the late 19th century, Actinomyces species are known for their filamentous form and their role in various ecological niches, particularly in the oral cavity, gastrointestinal tract, and soil. Certain species, such as Actinomyces israelii, are of clinical significance, as they can be associated with opportunistic infections, particularly in immunocompromised individuals. Recent research has highlighted the importance of Actinomyces as a microbial marker in health and disease, particularly in understanding the dynamics of the human microbiome and its impact on systemic health. The study of Actinomyces continues to evolve, providing insights into its potential role in human health, immune response, and disease mechanisms.

Elevated Actinomyces levels may indicate an increased presence of these bacteria in the oral cavity or gut, often associated with conditions like periodontal disease or other oral infections. This elevation can suggest dysbiosis, where a shift in the microbial community may be occurring. Conversely, low levels of Actinomyces may reflect a reduced ability for the body to manage oral and gut health, potentially pointing to an overall reduction in microbial diversity. This can lead to compromised immune responses or increased susceptibility to infections and inflammatory conditions. Understanding these levels helps in assessing an individual's gut and oral health, guiding potential dietary or therapeutic interventions.

Actinomyces is featured in the Gut Zoomer test, providing valuable insights into the balance of gut microbiota. This marker is important for understanding the presence of beneficial and pathogenic bacteria within the digestive system, as it plays a role in oral health and gut ecology. By assessing Actinomyces levels, the Gut Zoomer helps practitioners identify potential dysbiosis and tailor interventions to enhance digestive health and overall well-being.