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UNIT 8 Nutritional deficiency disorders Nutritional Deficiency Disorders: 1. Introduction to Nutritional Deficiency Disorders Nutritional deficiency disorders occur due to an inadequate intake, absorption, or utilization of essential nutrients. These deficiencies can lead to a wide range of health problems, affecting growth, immunity, metabolism, and organ function. 2. Types of Nutrients and Their Deficiencies A. Macronutrient Deficiencies Macronutrients provide energy and include carbohydrates, proteins, and fats. 1. Protein-Energy Malnutrition (PEM)