The cranberry juice contains D mannose, the simple sugar that is mostly found in some plants with c-type lectin and Proanthocyanidins, tannins which are organic substances that block and prevent bacteria from attaching themselves to the surface in the linings of specific body parts. It contains vitamin c and some ascorbic acids which boost the immune system to fight free radical that are not needed in the body. If you have greater and stronger immune system you will have lesser chances of having UTI’s. Presented by www.cranberryurinarytract.com