It is more important to keep yourself mentally well. I would imagine they contain so little of anything which would affect the diet, it might be life eating some dust one day (sorry for the little britain innuendo!). The chemical is just a filler/binder I think and its effect on you will be negligible. I have take hypertension meds throughout diet and not affected me.
Good luck, and dont worry about the tabs - you'll get off them as soon as you can anyway!