The Energy Balance

• Recommended amounts for nutrients and daily energy requirements
• Dietary reference values (DRVs): are estimates of the requirements and aren’t recommendations or goals for individuals
• These include:
o An estimated average requirement (EAR)
o A lower reference nutrient intake (LRNI)
o A higher reference nutrient intake (HRNI)
• This provides a range of values within which a healthy balanced diet should fall
• Estimated average requirements for energy are suggested + the average % that should come from the different energy components in a diet
• A constant supply of energy is needed to maintain essential body processes
o E.g. pumping the heart
• Basal metabolic rate (BMR): energy required for these essential processes
• BMR is higher in:
o Males
o Heavier people
o Younger people
o More active people
• If you eat fewer Kilojoules per day than you use you will have a negative energy balance and energy stored in the body will be used to meet the demand
• A regular shortfall in energy intake will = result in weight loss
• Eating more energy than what is being used= positive energy balance
o Additionally, energy will be stored, and you will gain weight