Nopal Cactus (Prickly Pear) Contains Tyrosine
(*) See References and Disclaimer at the bottom of the page.
Nopal cactus (prickly pear) contains tyrosine and is used for the production of 90% of the body's neurotransmitters(1*). Neurotransmitters carry "messages" to each of the nerve cells of the body. Tyrosine is also responsible for controlling a host of hormones and endocrine systems(2*). Losing neurotransmitters levels or any 'glitch' in the chemical levels that control their production may trigger fatigue, mental and physical burnout and depression(3*).
Tyrosine is also used by the skin cells that convert it to melanin— the skin's pigmentation(*). This is your skin's (and ultimately your body's) defense against ultraviolet radiation and its dangerous effects(4*).
Tyrosine aids the adrenal glands(5*) and helps to regulate the proper functioning of the pituitary gland and the thyroid(6*). Thyroid hormones have a role in most of the body's processes, and when your thyroid isn't in proper working order you can develop a host of symptoms: weight gain, irritability, and fatigue(7*).
Sources of Tyrosine
Dairy, Fish, Meats, Oats, Wheat, and Nopal Cactus (Prickly Pear) from Natural Home Cures Freeze Dried Nopal Powder Capsules (Prickly Pear).
Source References
(1) Wikipedia: Tyrosine
(2) WebMD: Tyrosine
(3) About Chemistry Tyrosine
(4) Web Book: Tyrosine
(5) Chem Spider: Tyrosine
(6) Britannica: Tyrosine
(7) US National Library of Medicine - Tyrosine To Alleviate The Effects Of Stress