L-Tryptophan, CAS# 73-22-3, is a amino acid manufactured through fermentation, available as White to light yellow crystal powder. L-Tryptophan is widely used as nutrition supplements. It is widely accepted as safe food additive in many countries.
No significant side effects reported. L-Tryptophan can cause heartburn, stomach pain, belching and gas, nausea, vomiting, diarrhea, and loss of appetite in specific groups of individuals.
As L-Tryptophan is widely known as safe, there is no limit on dosage of intake. However, we still recommend consumers to consult professionals before using large quantity of L-Tryptophan for long period.
Special groups refer to newborns, children, pregnant and any other applicable vulnerable groups.
L-Tryptophan may have some affect on pregnant women. We recommend consumers to consult professionals before using L-Tryptophan in food of pregnant women.
Generally recognized as safe(GRAS) is a FDA designation that a specific substance or ingredient is generally considered safe by experts, and so is exempted from the usual Federal Food, Drug, and Cosmetic Act (FFDCA) food additive tolerance requirements. L-Tryptophan is considered safe by FDA according to existing data and granted GRAS status.
1. Contaminated L-Tryptophan from a Japanese Company caused 1500 cases of EMS, including at least 37 deaths In 1989-1990
Reference: http://www.naturalhealthresearch.org/l-tryptophan-back-safe-effective/
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