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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 ]
Edible plants have long been a source of nutrition for humans, and the reliable provision of food through agriculture and horticulture is the basis of civilization since the Neolithic Revolution. Medicinal herbs were and still remain to be the key ingredients of many traditional medicine practices, as well as being raw materials for some modern ...
For example, some algae live photoautotrophically in the light, but shift to chemoorganoheterotrophy in the dark. Even higher plants retained their ability to respire heterotrophically on starch at night which had been synthesised phototrophically during the day. Prokaryotes show a great diversity of nutritional categories. [16]
Most human plant-based food calories come from maize, rice, and wheat. [13] Plants can be processed into bread, pasta, cereals, juices and jams, or raw ingredients such as sugar, herbs, spices and oils can be extracted. [14] Oilseeds are often pressed to produce rich oils: sunflower, flaxseed, rapeseed (including canola oil) and sesame. [15]
Parts-per-million cube of relative abundance by mass of elements in an average adult human body down to 1 ppm. About 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.
Humans can also obtain energy from ethanol, which is both a food and a drug, but it provides relatively few essential nutrients and is associated with nutritional deficiencies and other health risks. [40] In humans, poor nutrition can cause deficiency-related diseases, such as blindness, anemia, scurvy, preterm birth, stillbirth and cretinism ...
Food from plants. A plant-based diet is a diet consisting mostly or entirely of plant-based foods. [1] [2] It encompasses a wide range of dietary patterns that contain low amounts of animal products and high amounts of fiber-rich [3] plant products such as vegetables, fruits, whole grains, legumes, nuts, seeds, herbs, and spices.
A selection of magnesium-containing food consumed by humans. 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