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  2. Are Muscle-Building Supplements a Good Idea? - AOL

    www.aol.com/muscle-building-supplements-good...

    The first thing to know about muscle-building supplements is that they should not be your top priority. Resistance-training workouts should. These challenge your muscles, which is how to grow them.

  3. Essential amino acid - Wikipedia

    en.wikipedia.org/wiki/Essential_amino_acid

    So, for convenience, sulfur-containing amino acids are sometimes considered a single pool of nutritionally equivalent amino acids as are the aromatic amino acid pair, phenylalanine and tyrosine. Likewise arginine , ornithine , and citrulline , which are interconvertible by the urea cycle , are considered a single group.

  4. Phenylalanine - Wikipedia

    en.wikipedia.org/wiki/Phenylalanine

    Phenylalanine ball and stick model spinning. Phenylalanine (symbol Phe or F) [3] is an essential α-amino acid with the formula C 9 H 11 NO 2.It can be viewed as a benzyl group substituted for the methyl group of alanine, or a phenyl group in place of a terminal hydrogen of alanine.

  5. Everything You Need To Know about Tyrosine - AOL

    www.aol.com/lifestyle/everything-know-tyrosine...

    Tyrosine is an amino acid made by the body. It may boost cognitive function, especially during periods of stress. Many foods contain tyrosine. Skip to main content. 24/7 Help. For premium support ...

  6. Bodybuilding supplement - Wikipedia

    en.wikipedia.org/wiki/Bodybuilding_supplement

    Bodybuilding supplements are dietary supplements commonly used by those involved in bodybuilding, weightlifting, mixed martial arts, and athletics for the purpose of facilitating an increase in lean body mass. Bodybuilding supplements may contain ingredients that are advertised to increase a person's muscle, body weight, athletic performance ...

  7. Aromatic amino acid - Wikipedia

    en.wikipedia.org/wiki/Aromatic_amino_acid

    Tyrosine is semi-essential; therefore, it can be synthesized by the animal, but only from phenylalanine. Phenylketonuria, a genetic disorder that occurs as a result of the inability to breakdown phenylalanine, is due to a lack of the enzyme phenylalanine hydroxylase. A dietary lack of tryptophan can cause stunted skeletal development. [9]

  8. Tyramine - Wikipedia

    en.wikipedia.org/wiki/Tyramine

    Tyramine (/ ˈ t aɪ r ə m iː n / TY-rə-meen) (also spelled tyramin), also known under several other names, [note 1] is a naturally occurring trace amine derived from the amino acid tyrosine. [4] Tyramine acts as a catecholamine releasing agent .

  9. Tyrosine - Wikipedia

    en.wikipedia.org/wiki/Tyrosine

    In addition to the common amino acid L-tyrosine, which is the para isomer (para-tyr, p-tyr or 4-hydroxyphenylalanine), there are two additional regioisomers, namely meta-tyrosine (also known as 3-hydroxyphenylalanine, L-m-tyrosine, and m-tyr) and ortho-tyrosine (o-tyr or 2-hydroxyphenylalanine), that occur in nature.