<unk> s - also known as metabiotics, biogenics, or simply metabolites - are soluble factors (metabolic products or byproducts), secreted by live bacteria, or released after bacterial lysis providing physiological benefits to the host. However, this term is sometimes also used with regards to paraprobiotics - immobilised probiotics, which when ingested, may have the ability to exert positive biological responses and restore intestinal homeostasis in a similar manner to probiotics. Paraprobiotics are currently being referred to as modified, inactivated, non-viable, para- or ghost probiotics. Probiotics are widely used and accepted in many countries in clinical practice. Paraprobiotics, the immobilised version of probiotics are gaining traction in recent years due to the concerns about the possibility of low tolerance of probiotics, especially in paediatric populations and in severely ill or immunocompromised patients. Paraprobiotics seem to have similar beneficial properties as live probiotics with fewer of the constraints associated with unstable, diminishing bacteria.
Postbiotic
Probiotic
Prebiotic 
Cathartic
Toxoid
Antiparasitic
Biopharmaceutical
Anthelmintic