They shouldn't, but depending on how hard your body is working, they could. For example, the kidneys are main detoxifying organs and if more acid is running through your system, it will put more of a burden on them. Maybe take the “before” test while off supplements and drink plenty of lemon water that day. They are working hard right now, but it you're eliminating correctly and eating well, the bowels, kidneys, and liver all share the burden. Best to wait to do evaluatory (not totally necessary) lab work until after reseeding.