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Home > Anti-aging Research > L-Tyrosine


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  • Eat spinach or eggs for faster reflexes: Tyrosine helps you stop faster - Science Daily, 2/11/14 - "The participants had two sessions in the test lab. On one occasion they were given orange to drink that contained tyrosine, and on the other occasion the orange juice contained a placebo. The tests showed that the candidates performed better on the stopping task if they had drunk the juice with tyrosine ... Tyrosine food supplements and tyrosine-rich food are a healthy and inexpensive way of improving our intellectual capabilities. This makes them preferable to Ritalin and Modafinil, products that students often reach for to improve their academic performance. Tyrosine is safe and doesn't need a doctor's prescription" - See n-acetyl tyrosine at Amazon.com.
  • Hope for muscle wasting disease - Science Daily, 11/22/11 - "The amino acid L-tyrosine had a "rapid and dramatic impact" on Nemaline Myopathy (NM) in laboratory tests on mice, significantly improving symptoms of the muscle wasting disease ... consuming L-tyrosine could significantly improve muscle strength and mobility in NM, raising the possibility it also could be effective in a range of other muscular dystrophies ... What's more, the rapid and dramatic impact of L-tyrosine in NM mice also raises the possibility the supplement may be beneficial for dystrophy patients and other muscle degenerative conditions"
  • Get the diet scoop: 6 promising supplements, 6 to avoid - CNN, 2/16/07 - "promising ... Caffeine ... EGCG ... Chromium ... Conjugated Linoleic Acid (CLA) ... 5-HTP ... L-dopa or L-tyrosine"
  • L-Tyrosine Has No Effect On Endurance - Intelihealth, 11/6/02
  • The Essential Amino Acid Reader - Nutrition Science News, 1/01
  • Catecholamines Kick Out the Demons of Depression - Life Enhancement Magazine, 7/99 - "the amino acid phenylalanine converts to tyrosine, which transforms to dopamine. Dopamine is the immediate precursor of noradrenaline (see Figure 1). Dopamine deficiency is implicated in some forms of psychosis and abnormal movement disorders, such as Parkinson's disease ... when noradrenaline is insufficiently present, a person's mood or energy levels may decline, even bottom out - for example, in depression ... One way to ensure sufficient levels of these essential neurotransmitters is by consuming their nutrient precursors via supplementation. Phenylalanine can be taken as a nutrient supplement and neurotransmitter precursor to noradrenaline. Tyrosine does not provide the same uplifting benefits as phenylalanine, because the latter is required for the production of a metabolite, PEA, whose mood-elevating properties augment those of noradrenaline ... Most of the mental failings that often accompany aging, such as loss of memory, loss of mental alertness and energy, tendency toward depression, vulnerability to stress, and Alzheimer's and Parkinson's diseases, are associated with reduced levels of noradrenaline or dopamine ... There is a growing body of both anecdotal evidence and clinical observations showing that phenylalanine supplements can alleviate the symptoms of some forms of depression. It can also boost various aspects of mental function in healthy people who wish to maximize their ability to stay that way ... For the replenishment of noradrenaline, a phenylalanine supplement would be effective"
  • Natural Remedies for Depression - Nutrition Science News, 2/99