The digestive system plays a crucial role in nutrient absorption, breaking down food into smaller molecules that the body can utilize. The efficiency of this system influences how well vitamins, minerals, carbohydrates, fats, and proteins are absorbed. Factors such as the health of the gut lining, digestive enzymes, and the balance of gut bacteria can affect absorption rates. Additionally, the presence of certain conditions, like IBS or celiac disease, can hinder nutrient intake. Therefore, maintaining digestive health is essential for promoting optimal nutrient absorption.