Which tryptophan supplement is best? Tryptophan is an essential amino acid that’s naturally found in foods such as eggs, tofu and poultry. It plays an important role in the production of serotonin and ...

Here are the answers to several questions about tryptophan, sleep and Thanksgiving. What is tryptophan? Tryptophan is one of 20 essential, naturally occurring amino acids, which are the building ...

Tryptophan is one of 20 essential, naturally occurring amino acids, which are the building blocks of proteins. Your body is not able to manufacture its own tryptophan; therefore, it must get it from ...

This could be very bad. Does anyone remember Showa Denko and the L Tryptophan BS? Basically, a company called Showa Denko was making L Tryptophan supplements in Hong Kong, by genetically modifying ...