Clinical Nutrition in Gastrointestinal Disease

Alan Buchman, MD, MSPH

Chapter 1: The Practical Nutritional Assessment (continued)

Kursheed N. Jeejeebhoy, MBBS, PhD, FRCPC

Nutritional health is maintained by a state of equilibrium in which nutrient intake and requirements balance. Malnutrition occurs when net nutrient intake is less than requirements. Malnutrition leads to a succession of metabolic abnormalities, physiological changes, reduced organ and tissue function, and loss of body mass (Figure 1-1). Concurrent stress such as trauma, sepsis, inflammation, and burns accelerates loss of function and body mass leading to losses that leave the individual’s body function and mass insufficient to maintain health and life. Clinically important evaluation…