11 Sep 2025

Good sh*t: the capsule that could change obesity treatment

From Nine To Noon, 9:20 am on 11 September 2025
Researchers at the Liggins Institute at Auckland University believe a capsule of healthy gut bugs could change the future of obesity treatment.

Photo: befunky.com

Researchers at the Liggins Institute at Auckland University believe a capsule of healthy gut bugs could change the future of obesity treatment.

Eight years ago, 87 obese adolescents took part in a groundbreaking study to see whether fecal transfer would make a difference to their health and weight. 

The idea is taking 'good' gut bacteria from healthy donors and transferring them in capsule form to people with a less healthy microbiome.

Four years later, a follow-up study, just published, suggests some significant health benefits from that single gut bugs transfer.

Kathryn speaks with co-leader of the study, Professor Wayne Cutfield, Liggins Institute paediatric endocrinologist.

Professor Wayne Cutfield,

Professor Wayne Cutfield, Photo: Liggins Institute