Tyrosine is a Non-Essential Amino Acid.
Tyrosine transmits nerve impulses to the brain, helps overcome depression, improves memory, and increases mental alertness. The ability to assist depression is due to the ability of tyrosine to produce the mood-influencing chemical dopamine. It has also been scientifically proven that people who suffer from depression are low in tyrosine.
Researchers then believed tyrosine may help to treat depression, but further studies found that tyrosine alone is not effective enough to actually cure depression. Taking vitamins B6, B9 (folate) and copper along with tyrosine helps the body convert tyrosine into important brain chemicals.
Tyrosine helps produce melanin, the pigment responsible for hair and skin color.
Tyrosine is also said to promote the healthy functioning of the thyroid, adrenal and pituitary glands.
Dosage levels are not confirmed but some experiments have been performed with people taking up to 5 to 7 grams per day, with no confirmed toxic levels.
Tyrosine in Foods
Deficiency in tyrosine is rare. Low levels have been associated with low blood pressure, low body temperature, and an underactive thyroid.
One study suggests that taking tyrosine may help you be more alert after sleep deprivation, but more research is needed. Some athletes believe tyrosine helps their athletic performance; however, more studies are needed to validate this claim.
People taking MAO inhibitors, who suffer from high blood pressure and have problems with skin cancer should not take supplementation of L-tyrosine, and should aim to limit their intake of food sources high in this nutrient.
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