Clinical Nutritionist Practice Test 2026 - Free Practice Questions and Study Guide

The factor that does not affect nutrient absorption in the body is height. While various physiological and environmental factors play significant roles in how well nutrients are absorbed, height is not directly related to the physiological processes involved in nutrient absorption. For instance, age can impact the efficiency of nutrient absorption due to changes in metabolism and digestive function over time. Gastrointestinal health is crucial because conditions like celiac disease, Crohn’s disease, and other gastrointestinal disorders can hinder the body's ability to absorb nutrients effectively. Additionally, certain medications can interfere with the absorption of specific nutrients or alter gut health, leading to reduced nutrient uptake.

In contrast, height does not influence the biochemical mechanisms at play during nutrient absorption. Individual variations in nutrient absorption are more closely linked to factors like age, health status, and the presence of medications rather than physical measurements such as height. Thus, height is not a contributing factor in this context.