Michael dons some gardening gloves and gets grubby. It’s no surprise that digging, hoeing and heaving bags of soil around is great for our physical fitness. But Michael learns how gardening can also impact our microbiome from Dr Hannah Holscher at the University of Illinois Urbana-Champaign. She explores how gardening can boost the gut microbiome, benefitting our health and wellness. Our volunteer Caspar, tests his green fingers by growing some kitchen herbs and visiting a community garden.

Series Producer: Nija Dalal-Small
Science Producer: Catherine Wyler
Researcher: Sophie Richardson
Researcher: Will Hornbrook
Production Manager: Maria Simons
Editor: Zoe Heron
A BBC Studios production for BBC Sounds / BBC Radio 4.