Transcript

Metabolism is the process by which your body converts what you eat and drink into energy. During this complex biochemical process, calories in food and beverages are combined with oxygen to release the energy your body needs to function.

Have you ever wonder what happens to the food that you eat?

In the fed state - nutrients are stored

In the fasting state - nutrients are oxidized for energy production

Food consumed can be sub-categorized into the three major macro-molecule: Carbohydrates, Fats and Proteins.

These will be further broken down via digestion and absorption into glucose, fatty acids and glycerol as well as amino acids.

Carbohydrates are involved in the metabolic pathway of glycolysis during well-fed state

Carbohydrates can be stored as glycogen or fat, synthesized to other compounds as well as undergo oxidation process through acetyl-CoA via Kreb Cycle

Fats are involved in the metabolic pathway of beta oxidation during well-fed state

Fats can be stored as triglycerides in fat cells, synthesized into cell membranes as well as oxidized through acetyl-CoA via Kreb Cycle

Proteins are involved in the metabolic pathway of transamination during well-fed state

Proteins can be converted to sugar or fat, making new amino acids/protein compounds as well as oxidized through acetyl-CoA via Kreb Cycle

However during the fasting state, fatty acids and glycerol will be used to provide a source of energy via ketone bodies and glucose.