The tyrosine is an amino acid, an aromatic non-essential, meaning that it is produced in the body from another amino acid, phenylalanine. In addition, it can also be derived from the consumption of certain foods, such as cheese, fish, avocados, and nuts, for example, in the form of a nutritional supplement such as L-tyrosine.
This is an amino acid that is a precursor to neurotransmitters such as dopamine and is associated with the effects of anti-depressants, and this is also in the process of the synthesis of melanin , which is a substance that gives color to the skin, eyes, and hair.
In addition, the tyrosine residue that contributes to the functioning of the thyroid, because it participates in the production of the hormones, thyroxine (T4), and triiodotironina (T3), which is responsible for regulating the body’s metabolism.
What it is
The tyrosine residue could be put to a variety of situations, while ensuring the benefits to your health, being the main ones:
- The improvement in the depression-mild, moderate, and humor;
- The improvement of memory in situations of stress, improving their ability to perform tasks under pressure. However, there are some studies that suggest that it is not the case in older persons;
- The increase in the number of white blood cells and red blood.
- It helps in the treatment of certain diseases, such as Parkinson’s disease;
- It improves your performance in physical activity;
- To reduce the intensity of the response of the organism against a disease, or is in a situation of stress, and become an essential amino acid, as in these cases, your needs are increased.
In this way, it is essential for the tyrosine residue could be of help to the people who have phenylketonuria, which is a disease in which it is not, it is possible to synthesize phenylalanine. With this, it is not likely to be the formation of a tyrosine residue, the amino acid that is formed from phenylalanine, resulting in a deficiency of tyrosine in the body. However, the studies related to the use of the add-on of the tyrosine residue in people with phenylketonuria are not yet conclusive.
Key features
The tyrosine is an amino acid that is responsible for many functions in the body and when it reaches the brain, it becomes a precursor of certain neurotransmitters, such as dopamine, norepinephrine, and epinephrine, which may be considered, therefore, an essential part of the central nervous system.
In addition, the tyrosine also serves on the formation of the hormone from the thyroid, catecolestrogênios, and melanin . It is also important for the formation of various proteins in the body, including the enkephalins, which are considered to be analgesic effects of the natural body, as they are involved in the regulation of pain.
List of foods high in tyrosine
The following table lists the top foods rich in tyrosine, and the amount of this amino acid per serving:
In addition to these, other food items that can be found on the tyrosine residue are mushrooms, green beans, potatoes, eggplant, beet, radish, okra, turnip greens, endive, asparagus, broccoli, cucumber, parsley, red onion, spinach, tomatoes, and cabbage.
How to use the add-to-tyrosine
There are two types of add-ons, each of the amino acid, tyrosine-free, and others that have an N-acetyl-L-tyrosine, also known as the NALT. The main difference is that the NALT is more soluble in water, which can be metabolized in the body at a slower pace for the same purpose, it is necessary that the tyrosine residue is free to be used in higher doses.
To improve mental performance in the face of stress or due to a period of sleep deprivation, for example, the recommendation may be from 100 to 200 mg/kg / day. Although the studies are not conclusive regarding the intake of this amino acid, prior to the implementation of physical activity) to improve the performance, it is recommended that the intake of between 500 and 2 000 mg 1 hour prior to the activity.
Anyway, the ideal thing to do is to consult a doctor or nutritionist before you make use of the add-on of the tyrosine residue.
Contraindications to the supplementation.
The use of the add-in is not contraindicated during pregnancy and while breastfeeding, because there’s a lot of information about it. Also, it should be avoided by people with hyperthyroidism or Graves ‘ disease.
In addition, the tyrosine residue may interact with drugs such as Levodopa, drugs to deal with problems of the thyroid and anti-depressants and monoamine oxidase inhibitors as it can cause an increase in blood pressure.
People with kidney or liver problems, should use the add-on of the tyrosine residue only on the advice of a medical practitioner.
Side effects
The most common side effects of the use of the add-to-tyrosine may include headache, nausea, acidity, pain in the joints, and fatigue.
In addition, the tyrosine residue can cause an increase in blood pressure and, if it is consumed in large quantities, it can have a laxative effect.
