#uncat 

An **empty calorie** is a calorie found in foods and beverages composed primarily or solely of calorie-rich [[Nutrients#^8ec283|macronutrients]] but little or no macronutrients, [[Dietary fibre|fibre]] or [[Proteins|protein]] (they give you energy, but no nutrients)

Example: sugar cubes provide practically no calories othen than empty ones.
Example: alcohol in beer, wine, etc

## Expenditure
As a general rule, infants and adolescents burn more energy per kg than adults do, cause they're continually making large amounts of new tissue.

Resting Energy Expenditure:
![[Pasted image 20241205211639.png]]
The energy your body uses to simply exist is called *resting energy expenditure*, also known as *basal metabolism*; accounts for 60-70% of all the energy you need each day

When your thyroid gland doesn't secrete enough yormones (*hypothyroidism*), you burn food more slowly, REE drops. When your thyroid gland secretes excess amounts of hormones (*hyperthyroidism*), you burn food faster, and your REE is higher.

When excited your adrenal glands release *adrenaline*, and you burn food faster.

Your total energy requirement is your REE plus enough calories to cover the amount of work.
![[Pasted image 20241205215051.png]]
![[Pasted image 20241205215109.png]]


>[!Table for total energy expenditure]
>![[Pasted image 20241205215153.png]]
>![[Pasted image 20241205215204.png]]