In your opinions, how long after the expiration date is a supplement worth taking?
Depends on what it is and if it's been open or not.
And where it's been... hot, cold, dark etc.
no, once the clock hits midnight on the expiration date it loses 100 percent of it's potency.
i got a couple of jars with protein that expired 6 months ago or sostill sealed though so i guess it's ok