1450. The Secret Compound in Hops That Stops You From Overeating

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Host Dave Asprey sits down with Sarah Kennedy, CEO of Calocurb, to explore the surprising science of hunger suppression, natural GLP-1 activation, intermittent fasting, weight loss, visceral fat reduction, and a patented hops extract that may help people eat less without relying on willpower. 

The conversation centers on Amarasate, a natural compound derived from New Zealand hops, the same plant used to make beer. Originally investigated through a multimillion-dollar research program, this bitter plant extract activates specialized receptors in the digestive tract that stimulate the body’s natural appetite-regulating hormones. Sarah explains how this discovery led to Calocurb, a supplement designed to reduce hunger, control cravings, and make fasting and calorie restriction easier. 

Dave and Sarah break down the biology of GLP-1, CCK, PYY, ghrelin, and leptin, exploring how these hormones influence hunger, fullness, food cravings, and metabolic health. Unlike injectable GLP-1 medications such as Ozempic and Wegovy, Amarasate works through bitter taste receptors in the gut to stimulate the body’s own satiety signaling. They examine why the timing and location of these signals matter, how quickly the extract begins working, and what distinguishes this approach from conventional appetite suppressants. 

Sarah shares findings from four human clinical trials, including research reporting an average 18% reduction in calorie intake following consumption of the hops extract. They discuss how activating gut receptors can influence eating behavior, why some people struggle with persistent hunger despite consuming enough calories, and how manipulating the body’s natural fullness signals could change approaches to weight management. 

The discussion also examines a six-month randomized, placebo-controlled study involving approximately 150 participants, which reported an average 5.5% reduction in body weight, with estimated fat loss and no detected average muscle loss. Sarah describes findings suggesting approximately 3.5 times greater visceral fat reduction compared with placebo, raising questions about whether targeted appetite regulation could support healthier body composition. Dave and Sarah explore why preserving lean muscle while reducing abdominal fat is especially important for metabolic health, healthy aging, and longevity. 

They also explore how hops extract may make intermittent fasting and extended fasting easier by reducing hunger and food cravings. Dave discusses the practical challenges of fasting, while Sarah explains how bitter receptor activation can help people manage appetite without constantly fighting the urge to eat. They examine the potential applications for time-restricted eating, longer fasting windows, calorie control, and sustainable weight management. 

Finally, Dave and Sarah challenge conventional assumptions about willpower, hunger, and obesity, exploring why overeating is not simply a failure of discipline. They discuss the relationship between gut-brain signaling, metabolic hormones, food intake, and the emerging science of naturally regulating appetite, including how plant-derived compounds could complement nutrition, exercise, and other metabolic health strategies. 

This episode is essential listening for anyone interested in natural appetite suppression, hops extract, intermittent fasting, GLP-1, hunger hormones, weight loss, visceral fat, muscle preservation, metabolic health, gut-brain signaling, and science-backed strategies for controlling cravings and eating less. 

You’ll Learn: 

• How a patented compound extracted from hops activates bitter receptors in the gut to stimulate GLP-1, CCK, and PYY, the hormones involved in hunger and fullness 

• Why clinical research found that hops extract reduced calorie intake by approximately 18%, and what that means for appetite control and overeating 

• How a six-month clinical trial reported 5.5% body-weight loss, reduced visceral fat, and no detected average muscle loss 

• Why hunger, cravings, and overeating involve complex hormonal signaling rather than simply a lack of willpower 

• How natural appetite regulation may make intermittent fasting, extended fasting, and calorie restriction easier to maintain 

• How hops-derived compounds differ from injectable GLP-1 medications, and what the research suggests about their potential role in weight management 

Dave Asprey is a four-time New York Times bestselling author, founder of Bulletproof Coffee, and the father of biohacking. With over 1,000 interviews and 1 million monthly listeners, The Human Upgrade brings you the knowledge to take control of your biology, extend your longevity, and optimize every system in your body and mind. Each episode delivers cutting-edge insights in health, performance, neuroscience, supplements, nutrition, biohacking, emotional intelligence, and conscious living. 

New episodes are released every Tuesday, Thursday, Friday, and Sunday (BONUS). Dave asks the questions no one else will and gives you real tools to become stronger, smarter, and more resilient. 

Keywords: Sarah Kennedy, Sarah Kennedy Calocurb, Dave Asprey, The Human Upgrade, Calocurb, Amarasate, hops extract, hops weight loss, hops appetite suppressant, natural appetite suppressant, natural hunger suppressant, stop overeating, reduce hunger, control cravings, food cravings, hunger control, weight loss, fat loss, visceral fat reduction, belly fat, muscle preservation, lean muscle mass, GLP-1, natural GLP-1, GLP-1 activation, GLP-1 alternatives, Ozempic, Wegovy, CCK, cholecystokinin, PYY, peptide YY, ghrelin, leptin, hunger hormones, satiety hormones, bitter taste receptors, gut-brain axis, gut-brain signaling, intermittent fasting, fasting without hunger, extended fasting, time-restricted eating, fasting made simple, calorie restriction, calorie intake reduction, metabolic health, obesity, weight management, body composition, fat loss without muscle loss, biohacking, longevity, natural weight loss supplements 

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