With so many conflicting and contradictory nutrition claims dominating headlines and social media, deciding what to eat has become unnecessarily complicated. Stanford nutrition scientist Christopher Gardner, Ph.D., has spent more than three decades conducting evidence-based research to bring clarity to the conversation.

In this program, Gardner shares what decades of human nutrition trials reveal about where true scientific consensus exists, and where it does not. From his landmark “A to Z” and “DIETFITS” studies to ongoing research on plant-rich alternatives, ketogenic diets, the gut microbiome, and inflammation, Gardner has worked to move the field beyond diet myths and toward practical, evidence-based guidance.

At the center of his message is a powerful idea: healthy eating can be “unapologetically delicious,” built around whole, minimally processed, plant-rich foods aligned with personal values around culture, sustainability and social responsibility.

He will address pressing questions about different diets, cholesterol, seed oils, ultra-processed foods, protein, plant-based meats, fiber, fermented foods and more, offering a framework that helps individuals make informed, flexible, and lasting food choices.

This conversation invites us to reconsider not only what we eat, but how we think about food: as nourishment, pleasure, culture and a powerful tool for long-term personal and planetary health.

About the Speakers

Christopher Gardner, Ph.D., is a professor of medicine at Stanford Prevention Research Center who has led more than 20 years of NIH-funded, randomized controlled trials on nutrition. His work focuses on diet patterns, weight loss and cardiometabolic health.

A Nutrition, Food & Wellness Member-led Forum program. Forums at the Club are organized and run by volunteer programmers who are members of The Commonwealth Club, and they cover a diverse range of topics. Learn more about our Forums.

Organizer: Patty James 

This program contains EXPLICIT language.

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