What Is Metabolic Flexibility? Why Ketosis is the Better Goal Health intermittent fasting Keto keto adaptation ketones ketosis metabolism prolonged fasting What Is Metabolic Flexibility? Why Ketosis is the Better Goal Dr. Eric Berg March 19, 2026 At a glance Metabolic flexibility is an indicator of how easily cells can switch between fuel sources,... Read More Read more about What Is Metabolic Flexibility? Why Ketosis is the Better Goal