L-Tryptophan - Swanson

With L-Tryptophan, Swanson offers a health food supplement of rare quality.

L-tryptophan is an essential amino acid , meaning that the human body cannot synthesize it and must obtain it through diet. It is one of the 20 standard amino acids used by cells for protein synthesis .

L-tryptophan is found naturally in a variety of protein-rich foods, such as meats, dairy products, eggs, nuts, and seeds. Structurally, L-tryptophan is similar to other essential amino acids, but it is unique due to its indole group, which influences its function in the body and its role in the biosynthesis of other important molecules . As an essential amino acid, it is regularly studied for its presence and role in various biological processes .

Swanson’s L-Tryptophan manufacturing begins with a microbial fermentation process, where genetically engineered bacteria, such as Escherichia coli, produce L-tryptophan in fermentation tanks under controlled conditions. After fermentation, the L-tryptophan is recovered, purified by crystallization , and then processed into a fine, stable powder. This powder is then formulated into capsules with added excipients to improve stability and bioavailability . The final product is then encapsulated, subjected to rigorous quality controls , and packaged in protective packaging.