HLSC 2825U Chapter Notes - Chapter 1: Iron-Deficiency Anemia, Sickle-Cell Disease, Everyday Food
Document Summary
Chapter 1 pg 2-19 nutrition concepts and controversies textbook notes. Nutrition the study of how food nourishes the body. Nutrients interact with our body tissues and help maintain, grow, and develop them. Nutrients include carbs, fats, proteins, water, vitamins, and minerals. Nutritional genomics the science of how nutrients affect genes and how genes affect the activities of nutrients. Epigenetics the study of how environmental information affects genetic expression. Proteins = hydrogen, carbon, oxygen, and nitrogen. Vitamins = hydrogen, carbon, oxygen and nitrogen (only in b vitamins) Elemental diets used for people who cannot consume ordinary everyday food: can be in a liquid or pill form. Minerals such as calcium and phosphate are used in the composition of bone. Lack of digestive tract mechanisms can decrease the effectiveness of the immune system. Nonnutrients are components other than the six nutrients of foods that are present in foods and have a biological activity in the body.
