Is it true that vit. c an abortifacient?

Possibly: Research is limited but many women report that high doses of vitamin c (500 mg an hour) for several days taken in early pregnancy induces miscarriage. Thus, if one wants to avoid miscarriage then avoid high doses of c in early pregnancy. If one wishes to induce miscarriage it is safe to try but probably works less than 50% of the time. See http://www.Sisterzeus.Com/vit_c_ab.Html for more info.