Tyrosine Facts: Benefits, Sources, Dosage and Risks


Tyrosine is a non-essential amino acid that can be synthesized by the body. However, Tyrosine is also found in protein-rich foods or in the form of dietary supplements such as Genf20 Plus Somatropinne, Hypergh 14x and Growth Factor Plus.


What are the Characteristics of Tyrosine?

  • Non-essential but important amino acid for the body
  • It participates in the synthesis of numerous neuromediators
  • It is mainly found in animal products and oil seeds
  • L-tyrosine supplements are widely used in sports and in fighting fatigue.
  • Antioxidant action that delays cellular aging

Benefits and functions of Tyrosine

Hormone synthesis

Tyrosine is involved in the synthesis of adrenaline and noradrenaline, but also melanin (skin and hair pigment) and thyroid hormones.

Antioxidant like effects

Tyrosine has an antioxidant action that limits cell aging.

Anti fatigue and anti stress

In case of intense physical activity, tyrosine supplementation can be considered to stimulate dopamine production and to have a better recovery.

Some Foods Rich in Tyrosine are as follow:

  • Milk
  • Eggs
  • Meats
  • Fish
  • Nuts
  • cashew nuts
  • Almond
  • Avocado
  • Cucumbers
  • Red onions
  • Spinach
  • Rye
  • Mushrooms
  • Green beans
  • Potatoes
  • Eggplants
  • Red Beets
  • Asparagus

How to take Tyrosine?

It is estimated that a healthy adult needs 1–2 grams of tyrosine per day.

Supplements for injection: tips and contraindications

L-tyrosine dietary supplements are usually prescribed to promote mental alertness and energy, especially in athletes. They effectively combat physical and mental fatigue. As for tyrosine supplementation, the dose is often 500 mg of L-tyrosine per day to be taken preferably in the first part of the day when the synthesis of neurotransmitters in the brain reaches its maximum.

Tyrosine kinase inhibitors, on the other hand, are often used to slow tumor growth in the body. These inhibitors block the growth of tyrosine kinase, which is an enzyme directly involved in the development and growth of atypical cells.

Tyrosine Side Effects

Is tyrosine deficiency a health risk?

Shoyrosine is mainly synthesized by the body, but sometimes it can be synthesized in insufficient quantities. In these situations, there is significant fatigue and low resistance to stress.

Tyrosine Overdose

The scientific literature does not report on excessive use of tyrosine.

Avoid Tyrosine with Parkinson’s disease

Tyrosine as a dietary supplement is strongly discouraged in people who are being treated for dopamine disorders such as Parkinson’s disease.

In addition, high doses of tyrosine can interact with the action of thyroid hormones, so in the case of thyroid gland disease it is advisable to consult a doctor before taking L-tyrosine.

History of Tyrosine

An amino acid with many roles in the body, tyrosine was also for a long time a molecule of choice for the treatment of certain conditions. In fact, several patents have been obtained for the use of tyrosine in a therapeutic context and, in particular, to treat depression, Parkinson’s disease and states of shock. Even today, the combination of DOPA and tyrosine is still used to treat certain attention disorders, such as hyperactivity.

Chemical properties of Tyrosine

The crude formula for tyrosine is C9H11NO3, its molar mass is 181,1885 g/mol. Tyrosine is an amino acid that is said to be non-essential to the human body. In fact, we know how to synthesize it. However, it can be produced in insufficient quantities, so it is necessary to provide sufficient tyrosine in the diet.

Tyrosine is characterised by its phenolic group, whose hydroxyl is an acid. This amino acid is synthesized from phenylalanine. It plays a very important role since it participates in the synthesis of many essential substances: dopamine, noradrenaline, adrenaline, etc. It is also a precursor of thyroid hormones and melanin.




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