Tyrosine: what is this amino acid for

Tyrosine: What is this amino acid for and where it is found

The tyrosine it’s a amino acid (or amino acid) non-essential, so defined as it is produced by our body independently, so it is not “essential” or necessary to take it through food or through special food supplements.

In what amino acid, represents a fundamental element of the proteins present in our body. The body is able to produce tyrosine from another amino acid, namely the phenylalanine.

Due to the numerous functions it performs in our body, tyrosine is considered an element of great importance, as it produces chemical substances, neurotransmitters, including norepinephrine, dopamine and epinephrine. It is also important as a precursor to hormones, such as thyroxine and of melanin.

But what exactly is tyrosine used for? And how to increase its availability in our body? Let’s see what you need to know about this amino acid.

Tyrosine: what is it for?

We have seen that the amino acid tyrosine performs numerous and important functions within our body. In the form of a dietary supplement, tyrosine is indicated in the treatment of a rare metabolic disease known as phenylchetonuria (PKU), a disease that involves the body’s inability to produce the amino acid from phenylalanine.

But this is not the only task of tyrosine.

Supplementation is also indicated to treat conditions such as depression, sleep disturbances and attention deficit disorders (ADD or ADHD).

Supplements are recommended to improve mental performance and memory, but also in the treatment of insomnia and sleep deprivation; its use is also recommended in particularly stressful situations, to relieve the symptoms of premenstrual syndrome and to treat conditions and diseases such as Parkinson’s diseaseAlzheimer’s, in patients with Chronic fatigue syndrome and heart disease.

The integration is also proposed in subjects with schizophrenia and in case of erectile dysfunction.

Tyrosine also affects the production of melanin, the pigment that gives skin and hair color, is even thought to reduce appetite. Not surprisingly, there are those who believe that taking tyrosine supplements does lose weightor even that it can increase sports performance in athletes.

However, remember that many of these alleged beneficial effects have yet to be confirmed by science before they can be trusted.

Tyrosine in food

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We have seen that our body is perfectly capable of producing the tyrosine necessary to carry out normal tasks. However, it is useful to know that this amino acid is also found in many foods. But exactly where tyrosine is found? Good sources of this amino acid are represented by foods such as:

  • Dairy products
  • Pesce
  • Carne
  • Egg
  • Legumes
  • Dried fruit
  • Chicken and turkey
  • soy
  • Pumpkin seeds
  • Avena
  • Avocado
  • Banana.

Tyrosine supplement: when to take it?

Although we can synthesize the amino acid naturally, and although many foods are capable of increasing the levels of tyrosine in our body, in some cases it may be advisable to use a dietary supplement.

It is believed that the amino acid may be insufficient in the presence of symptoms such as a lower than normal body temperature, low blood pressure and an underactive thyroid.

You can find tyrosine supplements, also referred to as “L-tyrosine”, in the form of tablets or capsules. In most cases, in reality, it is not necessary to resort to these supplements, however an integration could prove to be important in certain situations, such as in the aforementioned case of phenylchetonuriain subjects with severe sleep deprivation, patients with ADHD and other medical conditions.

However, some people choose to take tyrosine supplements for other reasons as well. For example, as we have seen, there are those who choose to take similar products to optimize performance in lecturethose who opt for these supplements in an attempt to increase performance in bed, improve concentration, lose weight or reduce pain and ailments due to PMS.

In general, before taking this or any other kind of supplement, even if of natural origin, it will be good to ask the attending physician for an opinion. In fact, these products are not always effective and risk-free. Furthermore, it is never advisable to discontinue physician-approved drug therapies to use food supplements of any kind instead.


Generally, the dosage for L-tyrosine is around 500–1500 mg per daybut ask your doctor or follow the directions on the product label.

The supplement should preferably be taken before meals, to be divided into two or three daily doses.

Tyrosine: contraindications

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Although it is an amino acid present and synthesized by our body, it is important not to take a tyrosine supplement without knowing the possible ones. contraindications. The use of these products is not recommended, for example, in people with pathologies of the thyroid gland. Tyrosine could in fact worsen symptoms by stimulating the production of thyroid hormone thyroxine.

Supplements should also be avoided by those suffering from Graves’ disease and by patients suffering from migraine, as they may worsen the disorder and cause gastrointestinal symptoms. Supplements are also not recommended for children and for women who are pregnant or breastfeeding.

Drug interactions

Finally, remember that, like any other food supplement, even those based on tyrosine can interact with other drugs and even natural products, influencing their effectiveness. In particular, avoid taking this supplement if you are taking thyroid hormones o to Levodopaa drug used to treat Parkinson’s disease.

Avoid using supplements even if you are on drug therapy for depressionespecially if you are taking the so-called “Monoamine oxidase inhibitors” MAO.

If you have any questions, consult your doctor before taking any dietary supplements.

Source: GreenStyle by www.greenstyle.it.

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