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  2. Protein (nutrient) - Wikipedia

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

    Protein is a nutrient needed by the human body for growth and maintenance. Aside from water, proteins are the most abundant kind of molecules in the body. Protein can be found in all cells of the body and is the major structural component of all cells in the body, especially muscle. This also includes body organs, hair and skin.

  3. Nitrogen and Non-Protein Nitrogen's effects on Agriculture

    en.wikipedia.org/wiki/Nitrogen_and_Non-Protein...

    Non-protein nitrogen (or NPN) is a term used in animal nutrition to refer collectively to components such as urea, biuret, and ammonia, which are not proteins but can be converted into proteins by microbes in the ruminant stomach.

  4. Plant nutrition - Wikipedia

    en.wikipedia.org/wiki/Plant_nutrition

    Most of the nitrogen taken up by plants is from the soil in the forms of NO − 3, although in acid environments such as boreal forests where nitrification is less likely to occur, ammonium NH + 4 is more likely to be the dominating source of nitrogen. [49] Amino acids and proteins can only be built from NH + 4, so NO − 3 must be reduced.

  5. Biological roles of the elements - Wikipedia

    en.wikipedia.org/wiki/Biological_roles_of_the...

    nitrogen: 7: 5: Ubiquitous, essential for all forms of life; all proteins and nucleic acids contain substantial amounts of nitrogen. [11] Toxic in some forms. [11] osmium: 76: 1a: None known. [11] Osmium is very rare, substantially more so than any element essential to life. [3] The oxide is toxic to humans. [11] oxygen: 8: 5

  6. Nitrogen balance - Wikipedia

    en.wikipedia.org/wiki/Nitrogen_balance

    Nitrogen is a fundamental chemical component of amino acids, the molecular building blocks of protein. As such, nitrogen balance may be used as an index of protein metabolism. [1] When more nitrogen is gained than lost by an individual, they are considered to have a positive nitrogen balance and be in a state of overall protein anabolism.

  7. ‘Elevated Levels’ of Heavy Metals Found in Popular Protein ...

    www.aol.com/scientists-just-found-lead-cadmium...

    Plant-based protein powders—made from rice, peas or soy—were found to contain triple the amount of lead compared to whey protein powders, which are made from the liquid byproduct of cheese ...

  8. CHNOPS - Wikipedia

    en.wikipedia.org/wiki/CHNOPS

    Found in carbohydrates, lipids, nucleic acids, and proteins. Hydrogen 10% 10% Found in water, carbohydrates, lipids, nucleic acids, and proteins. Nitrogen 1% 4% Found in nucleic acids, proteins, some lipids (e.g. sphingolipids) and some polysaccharides (e.g. chitin) Oxygen 77% 63% Found in water, carbohydrates, lipids, nucleic acids, and proteins.

  9. Lead and cadmium found in muscle-building protein powders ...

    www.aol.com/news/lead-cadmium-found-muscle...

    A similar investigation of protein powders by Clean Label in 2018 found high levels of bisphenols. The 2024 report, however, had good news, Bowen said. ... only 26% of collagen-based protein ...