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  2. Essential amino acid - Wikipedia

    en.wikipedia.org/wiki/Essential_amino_acid

    The distinction between essential and non-essential amino acids is somewhat unclear, as some amino acids can be produced from others. The sulfur-containing amino acids, methionine and homocysteine, can be converted into each other but neither can be synthesized de novo in humans. Likewise, cysteine can be made from homocysteine but cannot be ...

  3. Nutrient - Wikipedia

    en.wikipedia.org/wiki/Nutrient

    Ethanol (C 2 H 5 OH) is not an essential nutrient, but it does supply approximately 29 kilojoules (7 kilocalories) of food energy per gram. [34] For spirits (vodka, gin, rum, etc.) a standard serving in the United States is 44 millilitres ( 1 + 1 ⁄ 2 US fluid ounces), which at 40% ethanol (80 proof) would be 14 grams and 410 kJ (98 kcal).

  4. List of macronutrients - Wikipedia

    en.wikipedia.org/wiki/List_of_macronutrients

    Fat has a food energy content of 38 kilojoules per gram (9 kilocalories per gram) proteins and carbohydrates 17 kJ/g (4 kcal/g). [ 2 ] Water makes up a large proportion of the total mass ingested as part of a normal diet but it does not provide any nutritional value.

  5. Essential amino acids in plant food - Wikipedia

    en.wikipedia.org/wiki/Essential_amino_acids_in...

    As such it is essential that these amino acids be supplied by the organism's diet. In case of humans there are 9 EAAs: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. [1] EAAs are provided in both animal and plant-based food. The EAAs in plants vary greatly due to the vast variation in the ...

  6. Essential gene - Wikipedia

    en.wikipedia.org/wiki/Essential_gene

    It was concluded that these 1,171 genes are non-essential in humans — at least no associated diseases were reported. [50] Similarly, the exome sequences of 3222 British Pakistani-heritage adults with high parental relatedness revealed 1111 rare-variant homozygous genotypes with predicted loss of gene function (LOF = knockouts) in 781 genes. [51]

  7. Eggs now qualify as ‘healthy’ food, FDA says: Here’s why

    www.aol.com/eggs-now-qualify-healthy-food...

    The U.S. Food and Drug Administration (FDA) now classifies eggs as a “healthy, nutrient-dense" food, according to a new proposed rule. Registered dietitians react to the change.

  8. Mineral (nutrient) - Wikipedia

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

    For example, whether chromium is essential in humans is debated. No Cr-containing biochemical has been purified. The United States and Japan designate chromium as an essential nutrient, [11] [12] but the European Food Safety Authority (EFSA), representing the European Union, reviewed the question in 2014 and does not agree. [13]

  9. Acyrthosiphon pisum - Wikipedia

    en.wikipedia.org/wiki/Acyrthosiphon_pisum

    [23] [33] [34] This metabolic complementarity is illustrated by the use of asparagine, a nonessential amino acid in phloem sap, as a major precursor in the production essential and nonessential amino acids necessary for the growth and survival of A. pisum and Buchnera.