Re: B complex
L-Tryptophan is still available :?: My stepfather has eosiniphilic myalgic syndrome from taking that. It is banned here in the US. But perhaps some believe it is worth the risk.
L-tryptophan is no longer technically "banned" in the US - not since DSHEA (Dietary Supplement Health and Education Act of 1994) was passed, giving manufacturers the right to market dietary supplements without FDA approval. The product can be manufactured and sold in the United States - it simply cannot be imported - other than certain additives not intended for human consumption. Almost all the cases of EMS in the United States and in Japan were eventually linked to L-tryptophan from a single contaminated source - a Japanese company called Showa Denko - not the amino acid itself. L-tryptophan itself is still routinely added to infant formulas, baby food, nutritional products like Ensure and so on - it was never restricted from use in those products.