When did you start taking the supplement? Did you start in January of last year, or has it only been a week?
You may not be able to remember specific dates (another reason why a supplement diary is necessary), but please try to be as precise as you can.
Make Your Own Supplement Diary
By Cathy Wong, About.com Guide
Updated: September 19, 2006
About.com Health's Disease and Condition content is reviewed by our Medical Review Board
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