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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.
Human nutrition deals with the provision of essential nutrients in food that are necessary to support human life and good health. [1] Poor nutrition is a chronic problem often linked to poverty, food security, or a poor understanding of nutritional requirements. [2]
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. [5] [2] [6] Raw foodism and intuitive eating are other approaches to dietary choices. Education, income, local availability, and mental health ...
Water is found in many foods and has been defined as food by itself. [6] Water and fiber have low energy densities, or calories , while fat is the most energy-dense component. [ 3 ] Some inorganic (non-food) elements are also essential for plant and animal functioning.
By definition, phytochemicals include all nutritional and non-nutritional components of edible plants. [37] Included as nutritional constituents are provitamin A carotenoids , [ 38 ] whereas those without nutrient status are diverse polyphenols , flavonoids , resveratrol , and lignans that are present in numerous plant foods. [ 39 ]
Most food products have a Nutrition Facts label. A good rule of thumb for utilizing this label is the 5/20 rule. Under this rule, less healthy nutrients should be kept at 5% DV or less.
Nutritionism is a paradigm that assumes that it is the scientifically identified nutrients in foods that determine the value of individual food stuffs in the diet. [1] In other words, it is the idea that the nutritional value of a food is the sum of all its individual nutrients, vitamins, and other components.
Not to mention, corn is relatively low in calories—122 calories per one plain ear of corn—and provides 3 grams of filling fiber. Keep in mind that adding ingredients like butter or cheese to ...