RT Book, Section A1 Saunders, Katherine H. A1 Igel, Leon I. A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1184162845 T1 Nutritional Requirements T2 Current Medical Diagnosis & Treatment 2022 YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264269389 LK accessmedicine.mhmedical.com/content.aspx?aid=1184162845 RD 2024/04/24 AB Approximately 40 nutrients are required by the human body. Nutrients are essential if they cannot be synthesized by the body and if a deficiency causes recognizable abnormalities that disappear when the deficit is corrected. Required nutrients include the essential amino acids, water-soluble vitamins, fat-soluble vitamins, minerals, and the essential fatty acids. The body also requires an adequate energy substrate, a small amount of metabolizable carbohydrate, indigestible carbohydrate (fiber), additional nitrogen, and water.