Tyrosine seems to be safe when taken into the mouth in doses up to 150 mg/kg per day for 3 months. Some people are experiencing the side effects such as headache, nausea, heartburn and fatigue.

No information is available if tyrosine is safe for the children to use in the medicinal amounts. Don’t give this to the children because no information is available for tyrosine for child safety. Don’t give to the children without taking proper advice from the healthcare provider.

Tyrosine is the type of amino acids, which is the building block of protein. The body is made tyrosine from another amino acid which is known as l theanine psychonaut. Tyrosine is also found in meats, eggs, fish, beans, wheat, nuts and oats.

Tyrosine is very commonly used in the protein supplements for treating the inherited disorder which is known as phenylketonuria i.e. PKU. People who are having these disorders will not process the phenylalanine property. As a result, they are not making any tyrosine. To meet their bodies needs the supplemental tyrosine is given.

Tyrosine is commonly used for improving memory, learning and alertness, expecially during the stressful situations.

Dosing

The following doses have been studied in the scientific research:

Mouth

Mental Performance

When a single dose of 100-300 mg/kg of tyrosine is taken before the stressful mental task.

Memory

150-300 mg/kg of tyrosine are being used before any memory task.

Alertness

For improving the alertness following the loss of sleep. 150 mg/kg of tyrosine in as split dose has been used.

PKU

Foods and medical foods are providing the 4-6 grams of tyrosine daily are recommended. Women with PKU who are pregnant or breastfeeding are advised to consume foods providing 6-7.6 grams of tyrosine daily. A doctor will measure the levels of tyrosine in the blood will make sure they don’t become too low and high. For most of the people with the PKU additional separate supplementation with free l-tyrosine benefits and side effects is not being recommended. It will cause the wide variations in the amount of tyrosine in the blood. This will cause the  unwanted side effects.

It is not recommended to take this product with levodapa as it can decrease its absorption in the body and hence its effectiveness. It also interacts with thyroid hormones and increases the production of these hormones in the body.