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L-Tyrosine Supplements

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Gen-Tec L-Tyrosine
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About L-Tyrosine Supplements

Tyrosine supplements may be used to support a range of body systems, such as the thyroid gland, adrenal glands, neurotransmitter levels and more. L-Tyrosine is a conditionally essential amino acid, meaning that the human body cannot produce enough under certain physiological conditions. Tyrosine is synthesized from an essential amino acid called L-Phenylalanine.


Tyrosine is required for the biological synthesis of L-Dopa, Dopamine, Noradrenaline and Adrenaline, in that specific order. These are important hormones and neurotransmitters that help to keep us alert, alive and even feel content. Interestingly, low iron levels negatively impact the synthesis of L-Tyrosine and all of the compounds that come from it. This is because iron is needed by the enzyme responsible for the chemical conversion of phenylalanine to tyrosine. Starving this enzyme of iron reduces tyrosine synthesis, indicating that tyrosine supplementation may be beneficial during iron deficiency anemia.


The question then remains, under what conditions does physiological demand for tyrosine exceed biological synthesis? Though scientific research is still being conducted in this area, chronic stress is a likely culprit. Whether it be mental, physical or emotional stress, excessive sympathetic nervous system activation over a long period of time may be eased with tyrosine supplementation.


Examples of physical stress include regular intesnse bouts of heavy weight lifting or working ten hours per day as a labourer. Emotional or mental stress may arise due to relationship difficulties. Tyrosine supplementation may be useful for depression or addictions, as it is a precursor to dopamine, noradrenaline and adrenaline, all of which help to improve mood and level of satisfaction. 


L-Tyrosine is used as a building block for melanin, the natural pigment in skin. Does tyrosine supplementation make it easier to get a sun tan? This is yet to be investigated! Tyrosine is required for thyroid hormone synthesis. In fact, given that there are so many tyrosine residues found in the molecular structure of the thyroid hormones, there may be a place for supporting thyroid hormone synthesis with tyrosine when levels are low.


L-tyrosine is best taken on an empty stomach, thogh it can be mixed into pre-workout drinks before exercise. Given that tyrosine is used for the synthesis of adrenal hormones, this amino acid is often prescribed for individuals said to be adrenally exhausted. In this way, the amino acid may support the synthesis of adrenaline and noradrenaline. Tyrosine is a white and relatively tasteless powder that mixes well with water, making it a high compliance product.