
Metabolic flexibility refers to the body’s ability to adapt how it uses energy depending on availability, activity level, and nutritional state. In simple terms, it describes how efficiently the body can switch between different fuel sources—primarily carbohydrates and fats—to meet energy needs at different times.
This article provides education-only, evergreen information to explain what metabolic flexibility is, how it is commonly described, and why it is often discussed in relation to metabolism and overall energy balance. It does not provide medical advice, diagnosis, or treatment.
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