Trying to separate three different claims about zinc picolinate: that it is the right molecule, that it is the right dose, and that it does something useful. A single post on this board cannot authenticate a compound and a certificate of analysis cannot tell you whether it helps you.
How long before you can reasonably say something is or is not doing anything?
Loose evidence and no evidence are different, and people overcorrect in both directions.
Sleep, food, or the compound? Yes. Currently on zinc picolinate myself.
An inconclusive account is useful if it stops the next person mistaking a story for a controlled comparison.
Same here.
Currently on zinc picolinate myself.
How long before you can reasonably say something is or is not doing anything?
An inconclusive account is useful if it stops the next person mistaking a story for a controlled comparison. Three years in on zinc picolinate and it lines up.
Stupid question: how do you know whether what is in the vial matches the label at all?