Tyrosine, an essential component of protein synthesis, was first discovered by Justus von Liebig in 1846. This nonessential amino acid plays a significant role in the production of adrenaline or epinephrine, when combined with phenylalanine. While tyrosine is readily available as a dietary supplement, it can also be found naturally in various foods such as eggs, sesame and pumpkin seeds, and cheese. It is recommended to consume 15 milligrams of both tyrosine and its precursor phenylalanine per pound of body weight. Meeting this requirement is effortless as lean beef, with just three ounces, contains approximately a gram of tyrosine, while a single egg white provides around 250 milligrams.
Counteracting Stress
When we experience stress, our body releases certain neurotransmitters known as catecholamines. These neurotransmitters are responsible for facilitating communication between nerve cells. Additionally, another neurotransmitter called noradrenaline, which plays a crucial role in the sympathetic nervous system, is also released during times of stress. However, this excessive release of chemicals can lead to depletion, impacting our overall function and mood. For instance, depletion of these neurotransmitters can result in muscle stiffness and disturbances in sleep patterns. Fortunately, research has shown that tyrosine, which is a precursor to several brain neurotransmitters, can help protect against mental fatigue that often accompanies stressful situations.
ADHD and Autism: Neurotransmitter Deficiency
Individuals with ADHD and autism often experience a deficiency of neurotransmitters, including noradrenaline and dopamine. These essential chemicals play a crucial role in maintaining focus and mental sharpness. Dopamine, specifically associated with the frontal lobes responsible for mood regulation, is particularly affected. To address this deficiency, doctors often recommend incorporating tyrosine and key vitamins into the treatment plan to enhance cognitive abilities and emotional expression. Alongside traditional therapies, a protein-rich diet can further support individuals with ADHD and autism.