Explain the digestion, absorption, and metabolism of the macronutrients (carbohydrate, protein, and fat). Make sure to identify the parts of the body involved in these processes.

Our digestive system plays a vital role in our bodies. “Eating healthy nutritious food is the number one way to avoid digestive problems.” (Martin, 2006)  The digestive system is the body system collected of structures that disruption compound food particle into smaller, absorbable product. Having a healthy digestive tract allows the body to fight off different types of diseases. Absorption is basically the transfer of nutrients from the digestive system into the circulatory system that is then distributed into the cells in the body. “The digestive system’s job is to digest food to its components and then to absorb the nutrients and some non-nutrients, leaving behind the substances, such as fiber, that are appropriate to excrete.” (Sizer & Whitney, 2013)

These are the organs of the body that make up the digestive system. 

Carbohydrates, fats and proteins are the macro-nutrients that the body needs to survive these also are essential to the metabolism. Carbohydrates are the main source of energy. Fat is an essential factor for building body tissue and cells, and it helps in the absorption of some vitamins and other nutrients. Protein is the main factor of our organs, muscles, all our living cells, and most of our body fluids.

Martin, B. (2006).  How Digestion Works. Total Health, 28(3), 44-51. Retrieved from EBSCOhost.

Sizer, F. & Whitney, E. (2013) Nutrition: Concepts and Controversies (13 ed).