A career built on understanding what lives inside us
Sharon's scientific career has been anything but narrow. Starting in food microbiology — where the safety of what we eat is paramount — she moved into clinical and veterinary settings, building a uniquely broad picture of how microorganisms interact with living systems at every level.
Her research focus on pathogen detection, livestock health, and the gut microbiome gave her an early window into something most health communicators were still ignoring: that the trillions of organisms living in your gut are not background noise. They are central to almost everything about your health.
As CEO and CSO of Semexion Pty Ltd, she has led research teams, coordinated international studies, and secured patents — bringing rigorous methodology to every question she investigates.
Why she started writing books
After decades in research, Sharon kept bumping into the same problem. The science on gut health was advancing rapidly — but almost none of it was reaching ordinary people in a usable form.
What was reaching people was worse: oversimplified advice, unqualified influencers, contradictory headlines, and products making claims the science didn't support. People were confused, overwhelmed, and making decisions without real information.
So she started writing. Not to simplify the science until it was meaningless — but to translate it faithfully, in plain English, for people who deserved the real answer.