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  2. Biomolecule - Wikipedia

    en.wikipedia.org/wiki/Biomolecule

    A biomolecule or biological molecule is loosely defined as a molecule produced by a living organism and essential to one or more typically biological processes. [1] Biomolecules include large macromolecules such as proteins, carbohydrates, lipids, and nucleic acids, as well as small molecules such as vitamins and hormones. A general name for ...

  3. Nutrient - Wikipedia

    en.wikipedia.org/wiki/Nutrient

    The nutrients considered essential for humans comprise nine amino acids, two fatty acids, thirteen vitamins, fifteen minerals and choline. [13] In addition, there are several molecules that are considered conditionally essential nutrients since they are indispensable in certain developmental and pathological states. [13] [14] [15]

  4. Human nutrition - Wikipedia

    en.wikipedia.org/wiki/Human_nutrition

    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 ]

  5. Micronutrient - Wikipedia

    en.wikipedia.org/wiki/Micronutrient

    Micronutrients are essential dietary elements required by organisms in varying quantities to regulate physiological functions of cells and organs. [1] [2] Micronutrients support the health of organisms throughout life. [3] [4] [5] In varying amounts supplied through the diet, micronutrients include such compounds as vitamins and dietary minerals.

  6. Mineral (nutrient) - Wikipedia

    en.wikipedia.org/wiki/Mineral_(nutrient)

    Some "minerals" are essential for life, but most are not. [1] [2] [3] Minerals are one of the four groups of essential nutrients; the others are vitamins, essential fatty acids, and essential amino acids. [4] The five major minerals in the human body are calcium, phosphorus, potassium, sodium, and magnesium. [2]

  7. Essential amino acid - Wikipedia

    en.wikipedia.org/wiki/Essential_amino_acid

    For comparison, there are 2.8 grams of protein in a serving of raw broccoli (100 grams) or 82 mg of protein per calorie (34 calories total), or the Daily Value of 47.67g of protein after eating 1,690g of raw broccoli a day at 574 cal. [21] An egg contains 12.5g of protein per 100g, but 4 mg more protein per calorie, or the protein DV after 381g ...

  8. Selenium in biology - Wikipedia

    en.wikipedia.org/wiki/Selenium_in_biology

    Although selenium is an essential trace element, it is toxic if taken in excess. Exceeding the Tolerable Upper Intake Level of 400 micrograms per day can lead to selenosis. [ 15 ] This 400 microgram ( μg ) Tolerable Upper Intake Level is based primarily on a 1986 study of five Chinese patients who exhibited overt signs of selenosis and a ...

  9. Animal nutrition - Wikipedia

    en.wikipedia.org/wiki/Animal_nutrition

    Most foods contain a mix of some or all of the nutrient classes, together with other substances. Some nutrients can be stored internally (e.g., the fat soluble vitamins), while others are required more or less continuously. Poor health can be caused by a lack of required nutrients or, in extreme cases, too much of a required nutrient.

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