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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 ]
Nutritional science is the study of nutrition, though it typically emphasizes human nutrition. The type of organism determines what nutrients it needs and how it obtains them. Organisms obtain nutrients by consuming organic matter , consuming inorganic matter, absorbing light, or some combination of these.
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.
They are an important source of protein and are considered complete proteins for human consumption, as (unlike plant proteins) they contain all the amino acids essential for the human body. [17] Some cultures and people do not consume meat or animal food products for cultural, dietary, health, ethical, or ideological reasons.
The human diet can vary widely. In nutrition, diet is the sum of food consumed by a person or other organism . [ 1 ] The word diet often implies the use of specific intake of nutrition for health or weight-management reasons (with the two often being related).
Fats are needed for construction and maintenance of cell membranes, to maintain a stable body temperature, and to sustain the health of skin and hair. Because the body does not manufacture certain fatty acids (termed essential fatty acids), they must be obtained through one's diet. Ethanol is not an essential nutrient, but it does provide calories.
The most important example of this is the Plant-based diet. [ 14 ] [ 15 ] Other approaches focus on broader environmental factors as well as social and economic challenges. For example, one strategy tied to region is the Mediterranean diet , a plant-based diet that is rich in fruits, vegetables, whole-grains, legumes, and fish.
Nutritional anthropology [1] is the study of the interplay between human biology, economic systems, nutritional status and food security.If economic and environmental changes in a community affect access to food, food security, and dietary health, then this interplay between culture and biology is in turn connected to broader historical and economic trends associated with globalization.