Topics: Nutrition, proteins, amino acids, carbohydrates, lipids, sterols, energy needs, electrolytes, minerals, water, acid-base balance, calcium, phosphorus, magnesium, zinc, copper, iodine, selenium, ultrace minerals, vitamins, riboflavin, niacin, Pantothenic Acid, folic acid, cobalamin, biotin, Carnitine, Choline, Phosphatidylcholine, Carotenoids, Homocysteine, Cysteine, Taurine, Glutamine, Arginine, Transmembrane Signaling, Hormone, Cytokine, Nutrient Interactions, immune system, oxidative stress, oxidant defense, body composition, maternal nutrition, Diet, Adolescence, Dietary Assessment, Pediatric disorders, Adolescent Disorders, Protein-Energy Malnutrition, Inherited Metabolic Disease, Childhood Obesity, Malabsorption assessment, Esophagus, Stomach, Short Bowel Syndrome, Inflammatory Bowel Disease, small bowel disease, celiac disease, Lipoprotein Metabolism, Cardiovascular Disorders, Hyperlipidemia, Atherosclerosis, hypertension, Chronic Congestive Heart Failure, cancer, Osteoporosis, Rheumatic Diseases, bone biology, Hematologic Disorders, Renal Disorders, Retinal Degenerations, respiratory function, Psychiatric Disorders, Behavioral Disorders, Neurologic Disorders, Anorexia Nervosa, Bulimia Nervosa, Hypercatabolic State, infection, trauma, sepsis, Enteral Feeding, Parenteral Nutrition, Nutrition Monitoring, Recommended Dietary Intakes, Alternative Nutrition Therapies, food processing, Food Additives, food Contaminants, Natural Toxins, Food Labeling, Health Claims, Dietary Supplement Legislation