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L-Tyrosine
 
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L-Tyrosine

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Health information provided by Aisle7

L-tyrosine is a nonessential amino acid (protein building block) that the body synthesizes from phenylalanine, another amino acid. Tyrosine is important to the structure of almost all proteins in the body. It is also the precursor of several neurotransmitters, including L-dopa, dopamine, norepinephrine, and epinephrine.

How to Use It

Most people should not supplement with L-tyrosine. Some human research with people suffering from a variety of conditions used 100 mg per 2.2 pounds of body weight, equivalent to about 7 grams per day for an average-sized person. The appropriate amount to use in people with PKU is not known, therefore, the monitoring of blood levels by a physician is recommended.

Where to Find It

Dairy products, meats, fish, wheat, oats, and most other protein-containing foods contain tyrosine.

Possible Deficiencies

Some people affected by PKU are deficient in tyrosine. Tyrosine levels are occasionally low in depressed people.1 Any person losing large amounts of protein, such as those with some kidney diseases, may be deficient in several amino acids, including tyrosine.2

Interactions with Supplements, Foods, & Other Compounds

Vitamin B6, folic acid, and copper are necessary for conversion of L-tyrosine into neurotransmitters.

Interactions with Medicines

As of the last update, no reported interactions between this supplement and medicines. It is possible that unknown interactions exist. If you take medication, always discuss the potential risks and benefits of adding a new supplement with your doctor or pharmacist.

Side Effects

L-tyrosine has not been reported to cause any serious side effects. However, it is not known whether long-term use of L-tyrosine, particularly in large amounts (such as more than 1,000 mg per day) is safe. For that reason, long-term use of L-tyrosine should be monitored by a doctor.

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The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2013.

Important Walmart Disclaimer: All content, including but not limited to, recipe and health information provided in Healthy Living, is for educational purposes only. Such content is intended to supplement, not substitute for, the diagnosis, treatment and advice of a medical professional. Such content does not cover all possible side effects of any new or different health program. Consult your medical professional for guidance before changing or undertaking a new diet or exercise program. Advance consultation with your physician is particularly important if you are under eighteen (18) years old, pregnant, nursing, or have health problems.
 
 
 

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