Nutrition assessment treatment is a detailed evaluation of data related to an individual's food and nutrient intake, lifestyle, and medical history. Once the data on an individual is collected, the nutritionist can assess and evaluate the nutritional status of that person. The nutrition screening assessment leads to a plan of care, or intervention, designed to help the individual either maintain the assessed status or attain a healthier status. The data for nutritional assessment falls into four categories namely anthropometric, biochemical, clinical, and dietary. Anthropometrics is the measurement of body muscle and fat. They are used to compare individuals, to compare growth in the young, and to assess weight loss or gain in an individual. Weight and height are the most frequently used anthropometric measurements. Skinfold measurement of several areas of the body is also taken. Pathological tests based on blood and urine can be an important indicator of nutritional status, but they are influenced by non-nutritional factors as well. Laboratory results can be altered by medications, hydration status, and other metabolic processes, such as stress. Clinical data provides information about the individual's medical history, including acute and chronic illness and diagnostic procedures, therapies, or treatments that may increase nutrient needs or induce malabsorption. Current medications need to be documented, and both prescription drugs and over-the-counter drugs, such as laxatives or analgesics, must be included in the analysis.