Peter Attia MD375 - The ketogenic diet, ketosis, and hyperbaric oxygen: weight loss, cognition, cancer, and more
At a glance
WHAT IT’S REALLY ABOUT
Dom D'Agostino on ketosis, exogenous ketones, cancer, Alzheimer's and hyperbaric oxygen
- D'Agostino explains how his Navy-funded work on oxygen toxicity seizures led him from drug research to ketogenic diets, which he says help about two-thirds of children with drug-resistant epilepsy.
- He gives practical keto guidance: track calories, macros, blood ketones and lipids, favor high protein (about 220 g for his 220-pound frame) and fibrous carbs, and ease in with electrolyte-ketone salts.
- The two discuss the evolution of exogenous ketones from 1,3-butanediol to esters and salts, covering D versus L enantiomers, liver and insulin effects, and why he favors electrolyte salts or MCT blends and warns that ketones above about two millimolar from supplements can be risky.
- On cancer and Alzheimer's, D'Agostino describes a metabolic therapy framework and the promise of ketones for glucose hypometabolism, while Attia presses on the lack of randomized trials and why they are hard to fund.
- They close on hyperbaric oxygen, where D'Agostino sees possible benefit for early concussion and TBI and points to a large sham-controlled USF trial in veterans, while Attia remains skeptical about cost and time commitment.
IDEAS WORTH REMEMBERING
5 ideasKetogenic diets can control seizures when drugs fail
D'Agostino says about two-thirds of children with drug-resistant epilepsy respond, roughly 30-40% of adults do, and a subset of super responders stay seizure-free after coming off the diet.
Protein and calorie tracking matter on keto
D'Agostino lost strength when his protein dropped, now eats up to about 220 g daily, and says he always underestimated his calories, which is why he says tracking is the top mistake to avoid.
Ketone salts are gentler than esters for most people
He says salts raise ketones more slowly without triggering insulin release, avoid the 1,3-butanediol liver and narcotic issues, and can ease the transition into ketosis by replacing lost electrolytes.
Higher ketone levels are not better
D'Agostino notes that animals given high-dose esters have died from ketoacidosis, and says supplemental ketones above about two millimolar risk counterregulatory insulin release and acidification, with one to two being an ideal range.
Racemic BHB may act as a timed-release signaling molecule
D is burned quickly for fuel, while L is metabolized three to four times slower and may keep anti-inflammatory and epigenetic signaling active, which is why D'Agostino favors DL mixtures.
WORDS WORTH SAVING
5 quotesThe ketogenic diet is indeed a magical diet in the way that, uh, it remarkably changes our physiology and there's no other diet, uh, that exists that can, for example, manage drug-resistant seizures, and it does that because it profoundly changes our fuel system, our physiology, our biochemistry, and our neuropharmacology.
— Dom D'Agostino
simple caloric restriction or creating even like a 10% or 20% energy deficit will be the big lever that's gonna cure 90% of what most people are seeking the ketogenic diet for. And you could do that with a standard diet.
— Dom D'Agostino
I view a ketogenic diet as a prescription metabolic therapy. So that's the world that I come from. You know, and then there's like, you know, there's clinical keto and then there's, like, internet keto.
— Dom D'Agostino
higher ketones are not advantageous and I think potentially very problematic.
— Dom D'Agostino
Your genes are not your destiny.
— Dom D'Agostino
High quality AI-generated summary created from speaker-labeled transcript.
