For decades scientists have suspected that obese people might have a “slow metabolism,” burning fewer calories than normal-weight individuals.

However, this hypothesis is controversial. A new review was published recently looking at the available evidence.

This is what they discovered.

What is Calorie Expenditure?

Calorie expenditure is the rate at which you burn calories. Along with oxygen, calories are the fuel that keeps your metabolism running.

Calorie expenditure is divided into the following categories:

  • Basal energy expenditure (BEE): The amount of calories used to maintain vital body functions.
  • Resting energy expenditure (REE): The amount of calories burned by the body during rest. REE accounts for 50–75% of total energy expenditure (1).
  • Activity energy expenditure (AEE): Physical activity increases the amount of calories burned.
  • Thermic effect of food (TEF): Eating causes a temporary rise in the amount of calories burned, known as diet-induced thermogenesis.

Bottom Line: Calorie expenditure is divided into several subcategories, such as resting and activity energy expenditure. Together, they comprise total calorie expenditure.

Excerpt:  Authority Nutrition

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