What are probiotics?

Probiotics are good bacteria that can be found in dietary supplements and sometimes in dairy products. Probiotics are defined as ”live microorganisms that, when administered in adequate amounts, confer a health benefit on the host.” (WHO/FAO 2002, Hill C et al. 2014). An important criterium for qualifying as a true probiotic is that health benefits have been proven in clinical studies. Furthermore, a probiotic product must contain the same bacterial strain(s) and the same dose that was used in the clinical studies.