Tyrosine-rich foods: Health advantages, dietary suggestions, and additional information
In the realm of amino acids, L-tyrosine stands out as a key player in supporting thyroid and adrenal hormone production, neurotransmitter synthesis, and cognitive function [1]. Its potential benefits, particularly during stressful periods or in individuals with adrenal or thyroid issues, have garnered attention, especially among those over 60 years old [2].
Research indicates that tyrosine can enhance cognitive performance under stressful conditions [3]. For older adults, potential benefits may include support for thyroid and adrenal hormone balance, which influence metabolism and energy, as well as cognitive function and mental clarity, potentially counteracting age-related decline or brain fog [2][3].
However, it's crucial to be aware of the potential risks associated with tyrosine supplementation. Common side effects reported include headaches, nausea, fatigue, and heartburn [1]. Moreover, tyrosine can interact negatively with certain medications, such as monoamine oxidase inhibitors (MAOIs), Parkinson’s drug levodopa, and thyroid hormone replacements often prescribed in older adults [1].
While doses up to 20 grams per day have been tolerated in military studies, typical supplement doses are much lower (in milligrams), and high doses could increase side effects [3]. Given that older adults often take multiple medications, the risk of adverse interactions with tyrosine supplementation is heightened.
People with the genetic disorder phenylketonuria (PKU) should be particularly cautious, as their bodies cannot process phenylalanine, a precursor to tyrosine, leading to a dangerous buildup of phenylalanine [1].
Given these factors, while tyrosine may have potential cognitive and hormonal benefits for people over 60, caution is needed, particularly if there are existing health conditions or medications involved. It is important for older individuals to consult their healthcare provider before starting tyrosine supplements to evaluate safety and appropriate dosing based on their medical profile [1][3].
Sources:
- Tyrosine - WebMD
- Tyrosine: The Amino Acid That Helps Your Body Fight Stress - Healthline
- Tyrosine: Mayo Clinic - Mayo Clinic
- A healthy diet, balanced with supplements like L-tyrosine, could potentially aid older adults in counteracting age-related mental decline and maintain cognitive function and mental clarity.
- Despite its potential benefits, people should be cautious when using tyrosine supplements, as common side effects include headaches, nausea, and heartburn, while high doses can increase these effects.
- It's critical for those on multiple medications, especially older adults, to consult their healthcare provider before starting tyrosine supplements, as the risk of adverse interactions with existing medications is heightened.
- Individuals with the genetic disorder phenylketonuria (PKU) must be particularly vigilant, as their bodies cannot process phenylalanine, a precursor to tyrosine, which can lead to the accumulation of harmful levels of phenylalanine.
