Essentials: The Biology of Taste Perception & Sugar Craving | Dr. Charles Zuker

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In this Huberman Lab Essentials episode, my guest is Dr. Charles Zuker, PhD, a professor of biochemistry, molecular biophysics and neuroscience at Columbia University and an Investigator with the Howard Hughes Medical Institute (HHMI). We explore taste perception and how the brain transforms chemical signals from food into distinct taste experiences. We discuss how these taste signals shape both conscious choices and unconscious behavior, as well as how food preferences can change over time. Additionally, we discuss gut–brain signaling and explain why sugar is especially powerful at driving cravings. Show notes: https://go.hubermanlab.com/98yVjnK Watch more Huberman Lab Essentials: https://youtube.com/playlist?list=PLPNW_gerXa4OGNy1yE-W9IX-tPu-tJa7S&si=a1_sA7rUT-fE0OM5 *Huberman Lab* Instagram: https://www.instagram.com/hubermanlab Threads: https://www.threads.net/@hubermanlab X: https://x.com/hubermanlab Facebook: https://www.facebook.com/hubermanlab TikTok: https://www.tiktok.com/@hubermanlab LinkedIn: https://www.linkedin.com/in/andrew-huberman Website: https://www.hubermanlab.com *Timestamps* 00:00:00 Charles Zuker 00:00:20 Senses & Perception 00:02:29 Taste, 5 Taste Qualities & Dietary Needs 00:05:49 Taste vs Flavor 00:07:05 Taste Buds; Bitter 00:08:54 Sweet vs Bitter, Sensory Perception from Tongue to Brain 00:11:56 Taste Plasticity & Changing Food Preferences 00:13:22 Taste Modulation; Salt 00:16:17 Gut-Brain Signaling 00:20:50 Sugar Appetite & Gut-Brain Axis; Artificial Sweeteners, Sugar Cravings 00:26:34 Taste & Essential Nutrients; Highly Processed Foods; Brain & Food Choices 00:30:07 Acknowledgements #HubermanLab #Science #Biology Disclaimer & Disclosures: https://www.hubermanlab.com/disclaimer