Which nutrient provides the maximum energy on breakdown?

Fat is the correct answer.

• Fats:
  • Fats are the slowest source of energy but the most energy-efficient form of food.
  • Fat molecules consist of primarily carbon and hydrogen atoms and some of them essential for diet.
  • Fats provide a source of concentrated energy as well as the fat-soluble vitamins A, D, E, and K.
  • It is needed for hormone metabolism, healthy skin and hair, tissue repair, protecting the internal organs and to prevent excessive loss of body heat.
• Carbohydrate:
  • A carbohydrate is an organic compound that consists only of carbon, hydrogen, and oxygen, usually with a hydrogen: Oxygen: atom ratio 2:1.
  • The body uses carbohydrates to make glucose which is the fuel that gives energy and helps keep everything going.
  • The body can use immediately or store it in the liver and muscles for when it is needed. Glucose is a carbohydrate which is the major fuel for the cells in the body.
• Proteins:
  • Proteins, building blocks of life, are compounds of carbon, oxygen, hydrogen and nitrogen.
  • Majority of proteins contain sulphur.
  • It is made up of numerous monomers, the amino acids, which are joined together by peptide bonds.
  • It is a major part of skin, muscles, organs, and glands and also found in all body fluids, except bile and urine.
• Fibres:
  • Fibre is the indigestible parts of plant foods, such as vegetables, fruits, grains, beans and legumes. It is a type of carbohydrate that helps keep our digestive systems healthy.