• Welcome to Phoenix Rising!

    Created in 2008, Phoenix Rising is the largest and oldest forum dedicated to furthering the understanding of, and finding treatments for, complex chronic illnesses such as chronic fatigue syndrome (ME/CFS), fibromyalgia, long COVID, postural orthostatic tachycardia syndrome (POTS), mast cell activation syndrome (MCAS), and allied diseases.

    To become a member, simply click the Register button at the top right.

Safe and Reliable Suppliers

physicsstudent13

Senior Member
Messages
611
Location
US
it would be nice if there was a list of safe and reliable suppliers for supplements- there seems to have been some deaths from tryptophan poisoning recently
 
Messages
426
Location
southeast asia
you mean brands? i also find it tricky and hard. and even for 1 brand the quality of each supplement could be different. such as solgar got their metafolin from merck but i heard other solgar product got issue before.
that also happens to other brands.
 

Hip

Senior Member
Messages
17,869
ukxmrv
Yes, that one in the 1980s was the last tryptophan poisoning (resulting from a production error) that I am aware of.