Nutritional absorption is the process by which the body takes in nutrients from the food we eat. This occurs mainly in the small intestine, where digested food is broken down into smaller components like vitamins, minerals, carbohydrates, proteins, and fats. These nutrients then pass through the intestinal walls and enter the bloodstream, providing essential energy and support for bodily functions. Factors such as digestion, enzyme activity, and the presence of certain food compounds can influence how effectively nutrients are absorbed. For example, some nutrients require specific conditions or other substances to be absorbed properly. Understanding these factors can help improve overall health and nutrition.