To understand the L-Tyrosine side effects, you first need to know what L-Tyrosine is and how it works.

L-Tyrosine is an amino acid considered to be non-essential and it is produced by your body from what is called phenylalanine. Phenylalanine is also an amino acid. Tyrosine is the starting point of neurotransmitters like dopamine, epinephrine, L-dopa and nor epinephrine. Tyrosine is naturally found in such foods as fish, wheat, dairy products, meats and oats along with other high protein foods.

L-Tyrosine is thought to be helpful with and used in treatment of extreme stress, depression and sadness related to trauma. It has also been used in some treatment of ADD and ADHD as well as for help for those going through withdrawal symptoms from alcohol. For those with ADHD, it is suggested that it only benefits them temporarily, lasting only a few weeks. Another use has also been for Parkinson's disease sufferers.

Some people have a natural deficiency of tyrosine such as those suffering from PKU.

The typical dosage suggested for best results is approximately 7 grams a day for most people. This should be adjusted based on the weight of the person taking the supplement. Sufferers of PKU should have the dosage based on blood testing levels and may need to be adjusted from time to time.

This supplement can be purchased very reasonably, making it accessible to nearly everyone. The typical price for this product ranges anywhere from $8 to $15 for a 500 mg 120 caps bottle. You can find this product in most health food store, drug stores and some larger department stores. It is also readily available on the internet.

There are no side effects currently reported associated with the normal dosage of L-tyrosine. This having been said, large doses and long term use should be monitored by a physician as there are no test results for long term use.

As in any supplement change or dietary alteration, a physician should always be consulted. Some supplements can have an adverse affect on other medications and can change your symptoms for other medical conditions, potentially worsening them. For this reason you should discuss your thoughts and plans regarding changing your supplement intake.