L-Tryptophan, a naturally occurring amino-acid, is the precursor of serotonin, a mood-regulating neurotransmitter produced in the brain and linked to sleep and relaxation. While it is a plentiful protein in many foods, it is largely destroyed through cooking and processing. L-Tryptophan acts to stimulate production of serotonin and has been found to be helpful in pain, anxiety, stress, depression, alcohol withdrawal, weight loss, and PMS.
Serotonin is involved in a wide range of psychological and biological functions, and influences mood, anxiety, and appetite. Healthy levels of serotonin are correlated with relaxation, calm, and an improved ability to cope with stress, whereas lower levels are associated with depression, anxiety, and poor appetite control.
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