Re: How sore is too sore to workout?
I second the stance against "vitamin I." I believe it to be partially responsible for a torn calf muscle last year. I would take the stuff before a strenuous workout (non-CrossFit - competitive team sport) and go hard. Eventually, I noticed an ache in my leg, so I took more. Eventually the muscle knotted up into a ball and I was unable to walk properly for a month. My "abuse" of Ibuprofen likely contributed to this injury for all of the reasons mentioned in the article above.