Re: 250mcg to 130 000 mcg (0.25 - 130 mg), depending on who you trust... real nice range, huh? And yet another source says that 1100 mCg is the upper tolerable level.
Re: 250mcg to 130 000 mcg (0.25 - 130 mg), depending on who you trust... real nice range, huh? And yet another source says that 1100 mCg is the upper tolerable level.