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Nutritional science (also nutrition science, sometimes short nutrition, dated trophology [1]) is the science that studies the physiological process of nutrition (primarily human nutrition), interpreting the nutrients and other substances in food in relation to maintenance, growth, reproduction, health and disease of an organism.
Therefore, undernutrition can result in an accumulation of afflictions and health deficiencies which results in less productivity individually and as a community. [ 2 ] Many children are born with the inherent disadvantage of low birth weight , often caused by intrauterine growth restriction and poor maternal nutrition, which results in ...
Nutrition is the biochemical and physiological process by which an organism uses food to support its life. It provides organisms with nutrients, which can be metabolized to create energy and chemical structures. Failure to obtain the required amount of nutrients causes malnutrition.
People on a balanced vegetarian or vegan diet can obtain adequate nutrition, but may need to specifically focus on consuming specific nutrients, such as protein, iron, calcium, zinc, and vitamin B 12. [6] [2] [7] Raw foodism and intuitive eating are other approaches to dietary choices. Education, income, local availability, and mental health ...
Malnutrition occurs when an organism gets too few or too many nutrients, resulting in health problems. [11] [12] Specifically, it is a deficiency, excess, or imbalance of energy, protein and other nutrients which adversely affects the body's tissues and form.
The standards would be used for nutrition recommendations for the armed forces, for civilians, and for overseas population who might need food relief. Roberts, Stiebeling, and Mitchell surveyed all available data, created a tentative set of allowances for "energy and eight nutrients", and submitted them to experts for review (Nestle, 35).
[29] [2] [30] Additional clinical findings on physical exam include marked muscle atrophy, abdominal distension, dermatitis, and hepatomegaly. [ 2 ] [ 31 ] WHO criteria for clinical assessment of malnutrition are based on the degree of wasting (MUAC), stunting (weight-for-height Z-score), and the presence of edema (mild to severe).
The term "calorie restriction" as used in the study of aging refers to dietary regimens that reduce calorie intake without incurring malnutrition. [1] If a restricted diet is not designed to include essential nutrients, malnutrition may result in serious deleterious effects, as shown in the Minnesota Starvation Experiment. [13]