The Tim Ferriss Show#845: How to Use Ketosis for Enhanced Mood, Cognition, and Long-Term Brain Protection — A Practical and Tactical Guide with Dr. Dominic D'Agostino (Plus: Deconstructing Tim’s Latest Keto Experiment)When Ketones Become Toxic
1:14:51–1:15:46 · 55s
High ketone levels above 3-5 mM can cause energy toxicity and reductive stress—one to two millimolar is the true sweet spot.