Nutrient absorption

Definition

Nutrient absorption refers to the process by which the body takes in and utilizes nutrients from food.

Scientific / Technical Definition

Nutrient absorption is the biological process through which digested food particles pass through the lining of the intestine and enter the bloodstream or lymphatic system, thereby becoming available for use by the body's cells and tissues.

Benefits

• Ensures the body receives essential vitamins and minerals needed for optimal functioning.
• Supports growth and repair of body tissues.
• Maintains energy levels by absorbing necessary carbohydrates and fats.
• Aids in immune system function by providing necessary nutrients.

Examples

• Absorption of calcium from dairy products.
• Intestinal absorption of iron from leafy greens like spinach.
• Vitamin C absorption from citrus fruits.
• Omega-3 fatty acids absorption from fish.

Additional Information

• Importance: Efficient nutrient absorption is crucial for maintaining overall health, particularly in seniors, as absorption efficiency may decrease with age, leading to potential deficiencies.

Related Terms

• Digestion
• Metabolism
• Nutrient deficiency
• Bioavailability
• Enzymes

References

• The Science of Nutrient Absorption
• Understanding Nutrient Absorption in the Elderly