Energy

 What is energy? 

Energy is define as the ability to do work. The first and for most function of food is to supply energy to the body. When food is digested the complex nutrients (like carbohydrate, protein, fats) are broken down into Monosaccharide, fatty acid, glycerol and amino acid respectively. This simple form are absorb into the blood stream and supply to the millions of cells in the body to be oxidised to released energy. 

Energy balance is state of equilibrium between energy intake and total energy expenditure. Energy intake comes from food and energy expenditure come from voluntary and involuntary activity deviation in energy balance food lied to malnutrition, underweight and overweight. Energy expenditure is a total amount of energy spend in 24 hours. Predominantly their are 3 components of    energy expenditure

1) BMR

2) Thermic effect of food. 

3) Physical activity. 

AI-Adequate Intake:

The average nutrient levels consumed daily by a typical healthy population that is assumed to be adequate for the population's needs. 

Observed, experiment food intake, estimate of nutrient intake. 

TUL-Tolerance Upper Limits:

The highest level to daily nutrients intake that's it lightly to pose no risk of adverse health effect for almost add individual in the general population. 

EAR-Estimated Average Requirement:

A daily nutrient intake of value that it estimated to meet the requirement of half of the healthy individual in an age and gender group used to determine diatairy adequacy of population but not appropriate for individual. 

BMR-Basal Metabolic Rate:

BMR measure the minimum amount of calories that your body need to perform necessary function. Commonly also termed as resting metabolic rate which is the calories burned if you stayed in bed all day. 

Factor affecting BMR:

Age, gender, physiological state, psychological state, climate, hormones.