energy

• How is the energy provided by food measured?

  In kilocalories (kcal) or kilojoules (kJ)
• What is the ideal percentage of energy intake from carbohydrates?

  50%
• What are the main roles of energy in the body?

  Physical activity, growth, heat generation
• What is the basal metabolic rate (BMR)?

  Minimum energy required to maintain body functions
• What is the average hourly BMR for adult males?

  70 kcal
• What percentage of daily kilocalories does BMR account for?

  60–65%
• When is BMR measured?

  When a person is warm and at rest
• What factors determine energy requirements and BMR?

  Age, occupation, climate, activity level