L-Tyrosine (CT–437)
Tyrosine, an amino acid, is the precursor to several important neurotransmitters in the brain that control mood, mental function and even sex drive. It also plays an important role in the functioning of the adrenal, pituitary, and thyroid glands, which control hormone production in the body. People who are depressed often have low levels of tyrosine in the brain, and in fact, several prescription medications used to treat depression do so by boosting tyrosine levels.
Several studies have indicated that tyrosine supplements can be an effective treatment for depression and anxiety, without the side effects associated with antidepressants. Tyrosine also can help counteract the effect of stress. In one study, soldiers given tyrosine supplements performed better on mental tests, were more alert, had fewer complains, and generally functioned at a higher level than those not given tyrosine. Natural healers prescribe tyrosine for women who suffer from PMS, and many find that it can reduce the fatigue, depression and general feeling of discomfort often associated with this problem. Dopamine, which is critical for sex drive, is one of the neurotransmitters manufactured from tyrosine. In fact, tyrosine is often prescribed to rev up a sluggish libido. Not surprisingly, loss of sex drive is often a sign of depression. It is common for depressed people to lose interest not only in sex but in other life-affirming activities as well.
Although it has not been scientifically proven, some studies suggest that tyrosine may stimulate the production of growth hormone. If this turns out to be true, tyrosine may also help build muscle and reduce body fat. Tyrosine is also reputed to reduce appetite in some people. I suspect that tyrosine may not work directly on the appetite centers of the brain but rather may help uplift the spirits of those who turn to food for comfort when they are depressed.
Take two 500 mg. tablets twice daily, half an hour before eating.
Tyrosine is a quasi-essential amino acid sometimes synthesized from methionine or phenylalanine.
Principal benefits: Can help suppress appetite. Critical neurotransmitter as it stimulates and modifies brain activity. The mood elevator phenylalanine must first be converted to tyrosine, without which norepinephrine will not be made in the brain and this would result in depression. Acts as a mood elevator by aiding in neural brain activity by increasing the rate neurons produce the antidepressants norepinephrine and dopamine. Used to control medication resistant depression. Used to reduce the amount of amphetamine a patient is taking. Helps reduce the side effects of cocaine withdrawal such as depression, irritability and fatigue. Improves libido (sex drive). Alleviates stress.
Dosage: The use of tyrosine to alleviate cocaine withdrawal symptoms is more effective when combined with vitamin B1, B2, C, niacin, and the enzyme tyrosine hydroxylase, in a glass of orange juice.
Tyrosine becomes the neurotransmitters L-dopa, dopamine, norepinephrine, and epinephrine in your body.
Functions of tyrosine in your body:
Symptoms of tyrosine deficiency include:
Foods that contain tyrosine include almonds, avocados, bananas, beans, brewer’s yeast, cheese, cottage cheese, dairy products, eggs, fish, legumes, lima beans, meat, milk, nuts, pickled herring, pumpkin seeds, corn, potatoes, spinach, seafood, seeds, soy, whey, and whole grains.