Yellow Dock Root is one of the best sources of naturally available iron. It concentrates iron from the earth and combines it with the vitamins and minerals needed for the best absorption in our bodies. According to Susun Weed, rises in the hematocrit (a measure of iron in our blood) of as much as a point a week are reported by women taking this iron tonic during pregnancy and after hemorrhage. And unlike prescription or synthetic forms of iron, Yellow Dock is not constipating. As a matter of fact, it's gentle stool softening properties gently help to relieve constipation. It is a wonderful liver detoxifier, blood cleanser, and is helpful in clearing chronic skin problems.