How Fructose Hijacks Hunger, Energy, and Healthy Aging with Chris Mearns

Chris Mearns is a metabolic researcher, the founder of LIV3 Health, and the creator of the Fructose Model, a systems-based approach focused on how fructose metabolism can influence cellular energy, hunger, fat storage, and broader metabolic health. Driven by years of research, Chris helps people understand fructose not simply as “fruit sugar,” but as an ancient survival signal. In nature, fructose helps animals prepare for scarcity by encouraging the body to conserve energy, increase hunger, and store fat. But in today’s modern environment, where sugar, refined carbohydrates, alcohol, salt, dehydration, and metabolic stress are common, Chris explains that the body can become stuck in this conservation state even when food is abundant. Through his work, Chris educates audiences on why going sugar-free alone may not be enough, how the body can produce its own fructose from hidden sources, and why many people feel well-fed but still tired, inflamed, hungry, or metabolically stuck. His goal is to make complex metabolic science practical, empowering people to make smarter food choices, support cellular energy, strengthen metabolic resilience, and age with better health. Chris has shared his work on podcasts including Boost Your Biology with Lucas Aoun, The Real Weight Loss Coach, The Skin I’m In Podcast, The Inul Chowdhury Show, and The Health Revolution TV Show. His broader mission is to advance the conversation around fructose metabolism so people can better understand the hidden drivers behind cravings, fatigue, weight gain, and chronic metabolic stress.