Benefits of L-Tyrosine

What is L-Tyrosine?

Amino Acids

Before discussing the benefits of L-Tyrosine, let's briefly highlight what is L-Tyrosine ……

L-Tyrosine is yet another one of those amazing amino acids (building blocks of protein) that is classified as a non-essential.

The term non-essential means that the body can manufacture it on its own from other amino acids obtained from dietary sources.

However, a non-essential amino acid can become an essential amino acid or conditionally essential under certain conditions.

For example, the body manufactures L-Tyrosine from the amino acid phenylalanine. However, people who suffer from a serious condition called Phenylketonuria (PKU) cannot metabolize the amino acid phenylalanine, which leads to brain damage including mental retardation. As such, the treatment for Phenylketonuria (PKU) is a dietary restriction of phenylalanine, but the body needs phenylalanine to make tyrosine and, therefore, many experts advocate supplementing their diet with tyrosine-enriched protein, making tyrosine an essential amino acid.

However, in the case of phenylketonuria, your health care provider will determine if you need a tyrosine-enriched diet and how much tyrosine is required.

In addition, there are times that a higher intake is needed for other therapeutic purposes through the use of supplements. This is done under the guidance of a physician which we will list some of its therapeutic uses under our benefits of L-Tyrosine section.

Benefits of L-Tyrosine

General Info

L-Tyrosine is a precursor of the neurotransmitters norepinephrine, epinephrine, and dopamine, all of which regulate mood. Therefore, a deficiency in this amazing amino acid has been associated with depression. In fact, tyrosine is often referred to as the 'anti-depressant' amino acid.

L-Tyrosine also aids in the production of melanin, which is the pigment that gives us are skin and hair color and it acts as a mild antioxidant. It is also needed for the healthy functioning of the adrenal, thyroid, and pituitary glands.

But wait, there are more benefits of L-Tyrosine …

According to human and animal research it appears that tyrosine acts as an adaptogen, helping the body adapt to and cope with the effects of physical or psychological stress. Tyrosine's adaptogen qualities are primarily due to the fact that tyrosine is a building block for the body's two main stress-related hormones -- norepinephine and epinephrine.

Lastly, tyrosine is a mild appetite suppressant and it aids in the reduction of body fat.

It's important to note that low levels of tyrosine have been associated with hypothyroidism, low blood pressure, low body temperature, and restless leg syndrome.

Benefits of L-Tyrosine

Supplemental Uses

Supplemental L-Tyrosine has been used for the following:

  • Stress reduction
  • Depression
  • Anxiety
  • Chronic fatigue syndrome (CFS)
  • Phenylketonuria (PKU)
  • Narcolepsy
  • Low sex drive
  • Alcohol and cocaine withdrawal
  • Improving alertness following sleep deprivation
  • Parkinson's disease

    L-Tyrosine Side Effects and Precautions

    Benefits of L-Tyrosine

    Our research indicates that there are no known side effects of L-Tyrosine. However, it is recommended that you speak to a qualified health care provider before taking any dietary supplements.

    In addition, individuals taking monoamine oxidase (MAO) inhibitors, commonly prescribed for depression, should not take supplements containing L-Tyrosine and must strictly limit their intake of foods containing tyrosine, as it may lead to a sudden and dangerous rise in blood pressure. Individuals on prescription medications for depression should discuss necessary dietary restrictions with his or her physician.

    It is recommended that L-Tyrosine supplements be taken at bedtime or with high-carbohydrate meals, so that it does not have to compete for absorption with other amino acids.

    It's important to be aware that individual amino acids should not be taken for long periods of time. To be safe, only take individual amino acid supplements under the direction of a physician familiar with their use.

    Food Sources of Tyrosine

    The natural food sources of tyrosine include avocados, almonds, bananas, dairy products, pumpkin seeds, lima beans, and sesame seeds.

    Tips on Selecting an L-Tyrosine Supplement

    To reap the maximum benefits of L-Tyrosine, here's what to look for:

    1. Amino Acids come in L-form or D-form. Select supplements in the L-form as they more closely resemble the composition found naturally in food and thus more compatible with human biochemistry.

    2. In general, purchase your supplements from pharmaceutical GMP compliant facilities, which adhere to the most stringent manufacturing standards.

    This is crucial because it provides you with the piece of mind in regards to safety issues and in knowing that your product does not contain contaminates as well as it contains the active ingredients stated on the label.

    Featured Product

    Interested in reaping the benefits of L-Tyrosine for vibrant health?

    One company that meets the above requirements -- and more -- is Xtend-Life Natural Products from New Zealand. Their flagship product called Total Balance contains L-Tyrosine, in addition to a broad spectrum of over 70 specialized nutrients that your body needs for optimum health including vitamins, minerals, potent antioxidants, specialty nutrients, herbal extracts, enzymes, and other amino acids.

    Total Balance is formulated by a highly credentialed scientific team that can blend these ingredients perfectly to ensure maximum benefits.

    We here at Nutritional-Supplement-Educational-Centre have been taking Total Balance for several years now and can personally attest to its excellent results such as an increase in energy levels, mental clarity, and an increase feeling of well-being.

    We hope this webpage on the benefits of L-Tyrosine was useful to you.

    To Your Health!

    The Editors


    Much more than the Benefits of L-Tyrosine can be found at our popular Amino Acid guide web-page

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