Energy (エネルギー)

Japanese page

Characteristics of nutrients

  • In nutrition it expresses the power obtained from food
  • The unit expressing energy is cal (calorie)
  • International organizations use joule
  • 1000 cal = 1 kcal
  • 1 kcal = 4.18 joule
  • * 1 kcal is the energy required to increase 1 kg of water to 14.5 degrees to 15.5 degrees (1 degree)


Function of nutrients

  • Source to move the body
  • Make the brain function
  • Motive force to live
  • Lots of activity = Lots of energy consumption
  • The balance between activity level and energy is important
  • Energy is necessary to maintain life, such as moving organs even when resting
  • If you take more energy (carbohydrates or lipids) than the amount used in the activity amount, that amount is accumulated in the body

When nutrients are deficient

  • too skinny
  • Get tired easily
  • Declining thinking ability
  • Decreased exercise capacity

When nutrients overdose

  • obesity
  • Glycosuria

Food that contains a lot of energy

FoodstuffIngredient per 100g (kcal)
Beef tallow940
Corn oil921
Sesame oil921
Oil of rapeseed921
Palm oil921
Olive oil921
Chili oil919
Beef rib loin fat831
Pork loin fat754


  • Energy is an essential nutrient for living
  • It is important to take it in good balance
  • The amount ingested changes depending on gender, height, weight, and momentum