The intestine is the most critical digestive organ and the largest immune organ in mammals, playing a central role in nutrient absorption, endocrine secretion, and defense against microorganisms.

Most people, including scientists and health-conscious consumers, understand the importance of gut health. The gut microbiome, comprised of archaea, fungi, and bacteria, coexists with the host in a ...

If you would like to learn more about the IAEA’s work, sign up for our weekly updates containing our most important news, multimedia and more. Victor Owino, IAEA Department of Nuclear Sciences and ...