STEM-Talk

Episode 14: Dominic D’Agostino discusses the physiological benefits of nutritional ketosis


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Dominic D’Agostino looks like a bodybuilder. But that doesn’t mean that he eats a diet typical for that sport; on the contrary, the research scientist—and amateur athlete—can go an entire day without eating and says his performance—both in the lab and in the gym—improves because of it.
D’Agostino is perhaps rare in the world of science in that he practices what he preaches. As associate professor in the department of molecular pharmacology and physiology at the University of South Florida, and a visiting research scientist at IHMC, D’Agostino develops and tests metabolic therapies for a range of diseases and conditions for which the ketogenic diet is the cornerstone.
The low-carb, moderate-protein, high-fat ketogenic diet is what he also follows for health and greater mental clarity.
The ketogenic diet for decades has been used, albeit perhaps sparingly in the clinic, to treat epileptic seizures. D’Agostino is working on the development of exogenous ketones in the form of ketone esters for cancer and neurological disorders as well.
For more information on D'Agostino and his research, visit: http://health.usf.edu/medicine/mpp/faculty/24854/Dominic-DAgostino.aspx or http://www.ketonutrition.org.
His IHMC bio is at http://www.ihmc.us/groups/ddagostino/; and his IHMC talk "Metabolic Therapies: Therapeutic Implications and Practical Application": https://www.youtube.com/watch?v=gONeCxtyH18
D’Agostino is a long-time friend and colleague to STEM-Talk Host Dawn Kernagis, and the two engage in a rich, cutting-edge conversation with knowledgeable input from IHMC Director Ken Ford in this episode.
00:37: Dawn introduces D’Agostino, who goes by ‘Dom,’ and Ken Ford as co-host.
2:14: Ford reads an iTunes five-star review of STEM-Talk from “A Sweet 81,” which is entitled BAM: “Amazing podcast. It’s like candy for the brain. That is, if candy was good for your brain. So it’s like ketones for your brain.”
2:48: Dawn describes Dom’s research: He develops and tests metabolic therapies for CNS oxygen toxicity, epilepsy, neurodegenerative diseases, brain and metastatic cancer. Main research focus past five years: understanding why the ketogenic diet and ketone esters are anticonvulsant and protective to the brain.
4:15: Dom says his interest in science started in high school: He was a football player and wanted to improve his athletic performance. His honors biology teacher got on him to study hard. “I saw biology and science as a way to understand my own biology and physiology to maximize my performance.”
5:23: During his Ph.D. program in neuroscience and physiology at the Robert Wood Johnson Medical School, his mentor urged him to be an independent thinker. He describes being “thrown into the fire” when he was asked to apply basic science research to medical situations. He specifically looked at how the brain responded to hypoxia.
7:12: He did a post-doc with Jay Dean and also became a recreational diver. “Dean was the only person studying cellular and molecular mechanisms of extreme environments.”
8:36: Of Dean, he said, “The tools he created are filling gaps in the understanding of dive physiology.”
10:19: Nutritional ketosis is important for the metabolic management of diseases, especially seizures.
10:45: Nutritional ketosis works similarly to fasting: you liberate free fatty acids from the adipose tissue and break down stored glycogen levels in the liver. Once the glycogen levels reach a certain level, you start accelerating the oxidation of fatty acids in liver.
11:11: Dom explains how ketosis works: the heart (and muscles) prefers fatty acids over glucose, but they don’t readily cross the blood-brain barrier. So brain energy metabolism will transition from glucose to a fuel source called ketone bodies, which is a by-product of accelerated fat oxidation in the liver. These represent water soluble fat molecules that readily cross the BBB; they help preserve,
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