Tyrosine is a supplement that may help improve alertness, attention, and focus. Depending on the dose, it may help boost physical and mental performance. But, not all research is conclusive, and ...

L-tyrosine can be found in sports nutrition products, claiming to boost performance. Learn more about what L-tyrosine is and if it might be useful for you.

L-tyrosine is an amino acid that's often used in supplements to improve cognitive function affected by stress. Supplements containing L-tyrosine supplements may also help treat phenylketonuria ...

Studies suggest that supplementing with L-tyrosine may help improve cognition when under stress. That may be because when stressed, the body can’t make enough tyrosine. One study, published in 2013, ...

Tyrosine is an amino acid that people need for good health. The body makes it from phenylalanine, which is in various foods, including meat, dairy, and soy. Learn more.

Tyrosine is an amino acid, a building block of protein, which is important to health. It adds to mental sharpness and lowers the risk of depression. Learn about 6 foods that contain tyrosine.

Dietitians explain what l-tyrosine is, the health benefits and risks of taking L-tyrosine supplements, and what to know about supplementing l-tyrosine.

At its core, 250mg of L-tyrosine provides the essential building block for thyroid hormones T3 and T4, ensuring your body has the raw materials it needs.

Thousands of women have sought help with their sleepiness by speaking to one of the top thyroid experts in the country – Kinsey Jackson, M.S., C.N.S. Kinsey explains that her new supplement can ...