How a non-industrialized diet affects gut microbes and health, with Dr. Anissa Armet PhD RD

This episode features Dr. Anissa Armet PhD RD from the University of Alberta in Canada, speaking about the impact of diet on both the gut microbiota and overall health. Dr. Armet, a registered dietitian and researcher, says the Western diet along with the associated gut microbiome changes have played a role (amongst other things) in […]

Interactions of polyphenols in the gut, with Prof. Yves Desjardins PhD

This episode features Prof. Yves Desjardins PhD from Laval University in Canada. Prof. Desjardins, an agrologist by training, explains that polyphenols are metabolites synthesized by plants and present in the plant foods we consume. When humans consume polyphenols, we absorb a small fraction (around 5%) of them in the upper gastrointestinal tract, but most of […]

The interplay between gut microbiota, diet, and circadian rhythms, with Dr. Vanessa Leone PhD

This episode features Dr. Vanessa Leone PhD from the University of Wisconsin – Madison on how gut microbes and eating patterns impact the host circadian system and overall health. In mouse models, Dr. Leone has found that in a 24-hour period, minor changes occur in the composition of the gut microbiota, while more important changes […]

New paper summarizes current findings from global research on the vaginal microbiota

Knowledge about the vaginal microbiota is important for women’s health worldwide, but the majority of the research to date has centered around women of European descent, with limited data from across different genetic, cultural, environmental, and health conditions. A new paper led by ISAPP board member Prof. Sarah Lebeer PhD, published in Trends in Microbiology, […]

How to respond to the question “Should I take a probiotic?”

By Dr. Mary Ellen Sanders PhD and Prof. Daniel Merenstein MD A Washington Post article published March 11, 2025 by a gastroenterologist addressed a question posed by a reader: “I’ve heard about the benefits of probiotics for years. Should I start taking them?” We both get this question frequently, and over the years have answered […]

An overview of precision fermentation, with Prof. William Chen PhD

This episode features Prof. William Chen from Nanyang Technological University in Singapore, speaking with the ISAPP hosts about precision fermentation. In Singapore, enhancing national food security is of interest and one of the technologies used to achieve this is precision fermentation. Prof. Chen describes the differences between traditional fermentation, biomass fermentation, and precision fermentation. In […]

Precision fermentation for animal-free milk, with Dr. Abigail Thiel PhD

This episode features Dr. Abigail (Abbey) Thiel PhD, who works remotely (from the US) with Wageningen University to manage a project focused on developing animal-free milk proteins using precision fermentation. Dr. Thiel explains that the motivation for the project is to find alternatives to animal-produced foods using microorganisms to produce key components of dairy products. […]

ISAPP’s President Elected to the American Academy of Microbiology

The President of the ISAPP Board of Directors, Prof. Maria Marco PhD, was among the elite group of scientists elected this year to the American Academy of Microbiology. Membership in the Academy is given to individuals within the American Society for Microbiology (ASM) who are selected through a rigorous process that involves peer evaluation of […]

The Promise of Personalized Medicine

By Prof. Dan Merenstein MD While the existence of responders and non-responders are evident in any clinical trial, today’s forward thinkers envision the next logical step: personalized medicine. Here, I’m a skeptic in a sea of enthusiasts. Although a few ISAPP experts have cautioned that the claims for personalized approaches outpace their scientific substantiation (see […]

Archive Highlight: An evolutionary perspective on fermented foods, with Assoc. Prof. Katie Amato

Continuing in the series on the latest fermented food science, we are highlighting Episode 9 from our archives. In this episode, the ISAPP hosts talk about fermented foods and non-human primates with Katie Amato of Northwestern University, USA. Amato describes what she has learned from studying the gut microbiota of non-human primates and how it […]