Marlene-watson-tara
Marlene Watson-Tara
Bill-tara
Bill Tara

Macrobiome: How the Planet Governs Human Ecology and the Microbiome

Marlene Watson-Tara and Bill Tara

Friday, 27 March 2026

2:00pm

1 hour

Oxford Martin School: Lecture Theatre

£10 - £18

Natural health educators and vegan activists Bill Tara and Marlene Watson-Tara discuss the ideas and actions to reclaim our physical, mental and spiritual health outlined in their new book.

The couple describe how the macrobiome traces a unique journey through the infinite feedback loops of energy and matter that flow through the environment and us. These pathways of information are the key to understanding the ecology and human health. They extend from the soil, air, water and food into the human microbiome. Through the millennia, we learned to understand the sounds, rhythms, textures and cycles of nature and bring ourselves into harmony with them, they say. We created a unique niche for ourselves, but we have become enamoured with our ingenuity and ignored our often-fatal errors. The dialogue is fading. Now we have arrived at a critical crossroads.

The Taras say we are attempting to adapt to a synthetic environment. This artifact of our own making is not designed to nourish human or non-human life. Adjusting to the modern physical and social environment ignores the wisdom of the past and creates disease, depression and environmental destruction. They say one simple yet surprising link to a better future lies in our primary relationship to the planet, the food we eat. The choices we make about the foods we eat define our health and our relationship with nature. They say our common choices are made for reasons of emotional habit, bad science, cultural myth and commercial hubris.

Bill Tara is a seminar leader, author and has been an activist for natural health care for 60 years. He has been invited to more than 25 countries to teach macrobiotic nutrition and human ecology. Tara has established health education centres in the USA and Europe. He and his wife, Marlene, are founders of the Human Ecology Project to promote the vision of a healthy world for humans and non-humans alike. His most recent book is How to Eat Right and Save the Planet.

Marlene Watson-Tara has been a lifelong voice for animals. From a young age, she established herself as a dynamic health counsellor, teacher and advocate for a wholefood plant-based vegan diet, yoga and vibrant health. She is a graduate of T Colin Campbell Centre for Nutrition Studies and an expert in her field on macrobiotics and plant-based nutrition. Her love of oriental philosophy and human ecology is her driving force. She is the author of several books, most recently Go Vegan. She has designed vegan menus for the festival’s gala evenings.

The Telegraph Festival media partner University of Oxford European Union Bodleian Libraries Festival cultural partner Oxford Martin School Festival ideas partner Oxford Mathematics Spanish Embassy The Spanish Embassy: supporters of the programme of Spanish literature and culture Spain Arts and Culture Blackwell’s Festival on-site and online bookseller Symington Wines of the Douro Valley HM Government of Gibraltar Compassion in World Farming Pasture to Plate Old Bank Hotel Five-star hotel partners of The Oxford Collection Old Parsonage Hotel Five-star hotel partners of The Oxford Collection Oxford Brookes University Oxford International Centre for Publishing Gravita Accountants to the festival Mirabaud Private bank - London Confucius Institute Voltaire Foundation Felicity Bryan Associates Goldmoney Properties Princeton University Press Prestige publishing partner. Celebrating 25 years in Europe in 2024 Oxford University Department for Continuing Education Jewish Book Week Partner of Oxford Literary Festival Pol Roger Duff Cooper Prize Jim Mellon Miles Young Tim and Marion Stevenson Martin and Elise Becket Smith Jason and Heidi Smith David Isaac Other donors Yale University Press London New College New College founded 1379 Exeter College Exeter College: college home of the festival. Founded 1314 Worcester College Worcester College founded 1714 Lincoln College Lincoln College founded 1427 Trinity College Trinity College founded 1555 Magdalen College Magdalen College founded 1458 Reuben College Reuben College founded in 2019 Harris Manchester College Harris Manchester College founded 1893 Pusey House Founded 1884 New Dutch Writing Human Ecology Project MACROVegan Colbenson Festival digital strategy & web design Racalia Olive Oil Olive oil from Sicily Paul Bloomfield Ltd University of Oxford Alumni Office Alumni Office The Sheldonian Theatre Oxford Centre for Hebrew and Jewish Studies Oxford Centre for Islamic Studies Italian Cultural Institute Oxford University Images Oxford University Images CAV Oxford The Litmus Partnership Schoolreaders Science Oxford Windrush Group The Oxford Times BBC Radio Oxford Local radio partner Conference Oxford Ox in a Box OX magazine

The Oxford Literary Festival sponsors, donors & partners

The Telegraph Festival media partner University of Oxford European Union Bodleian Libraries Festival cultural partner Oxford Martin School Festival ideas partner Oxford Mathematics Spanish Embassy The Spanish Embassy: supporters of the programme of Spanish literature and culture Spain Arts and Culture Blackwell’s Festival on-site and online bookseller Symington Wines of the Douro Valley HM Government of Gibraltar Compassion in World Farming Pasture to Plate Old Bank Hotel Five-star hotel partners of The Oxford Collection Old Parsonage Hotel Five-star hotel partners of The Oxford Collection Oxford Brookes University Oxford International Centre for Publishing Gravita Accountants to the festival Mirabaud Private bank - London Confucius Institute Voltaire Foundation Felicity Bryan Associates Goldmoney Properties Princeton University Press Prestige publishing partner. Celebrating 25 years in Europe in 2024 Oxford University Department for Continuing Education Jewish Book Week Partner of Oxford Literary Festival Pol Roger Duff Cooper Prize Jim Mellon Miles Young Tim and Marion Stevenson Martin and Elise Becket Smith Jason and Heidi Smith David Isaac Other donors Yale University Press London New College New College founded 1379 Exeter College Exeter College: college home of the festival. Founded 1314 Worcester College Worcester College founded 1714 Lincoln College Lincoln College founded 1427 Trinity College Trinity College founded 1555 Magdalen College Magdalen College founded 1458 Reuben College Reuben College founded in 2019 Harris Manchester College Harris Manchester College founded 1893 Pusey House Founded 1884 New Dutch Writing Human Ecology Project MACROVegan Colbenson Festival digital strategy & web design Racalia Olive Oil Olive oil from Sicily Paul Bloomfield Ltd University of Oxford Alumni Office Alumni Office The Sheldonian Theatre Oxford Centre for Hebrew and Jewish Studies Oxford Centre for Islamic Studies Italian Cultural Institute Oxford University Images Oxford University Images CAV Oxford The Litmus Partnership Schoolreaders Science Oxford Windrush Group The Oxford Times BBC Radio Oxford Local radio partner Conference Oxford Ox in a Box OX magazine