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Tryptophan (β-(β-indolyl)-α-aminopropionic acid) is an essential amino acid. The L-stereoisomer is part of the structure of gamma globulins, fibrinogen, casein, and other proteins. Tryptophan is a provitamin.
Tryptophan, as a precursor to serotonin, has an antidepressant effect on the body. It helps reduce hyperactivity and obsessive states in children, premenstrual anxiety in women, fibromyalgia, and chronic fatigue syndrome. As a precursor to melatonin, it promotes good sleep and normal rest in both early and later ages.
Tryptophan is not synthesized by the human body and must be obtained from food. The daily requirement for an adult is 0.25 g (3.5 mg/kg of body weight), and for children up to 7 years old, it is 1 g.
Recommendations for Use
It may be recommended by a physician as a dietary supplement to the diet as an additional source of the amino acid L-tryptophan for people prone to stress, anxiety, and those suffering from sleep problems.
Dietary supplements should not be used as a substitute for a complete and balanced diet.