Nutrition & Diet Therapy

Absorption and Digestion

• Absorption involves substances passing through the intestinal mucosa into the blood or lymph.
• The main site for metabolism in the body is the liver.
• The duodenum, which is the first part of the small intestine, mainly absorbs glucose and water-soluble vitamins.
• Ingestion is the process of taking food, drink, or another substance into the body by swallowing or absorbing.
• Assimilation involves the set of processes through which absorbed nutrients are used by the body for energy and to form and maintain body structures and functions.

Small Intestine Absorption

• The ileum, which is the last part of the small intestine, mainly absorbs minerals.

Energy and Enzymes

• The basal metabolic rate (BMR) is the term for the amount of energy required to maintain life-sustaining activities for a specific period.
• Absorption occurs mainly in the small intestines through the villi, which are small finger-like projections that increase the surface area for absorption.

Factors of Ingestion

• Important factors in the process of ingestion include hunger, appetite, and the physical properties of food.

Enzymes

• Enzymes are biological molecules, such as proteins, that speed up chemical reactions in the body, playing a crucial role in digestion.

Test your knowledge on digestion, absorption, and metabolism in the context of Nutrition & Diet Therapy. This quiz covers topics such as food choices, chewing, swallowing, digestion, and absorption of nutrients. Challenge yourself to see how well you understand the processes involved in ingesting and processing food.