According to research, cranberries are highly rich in potassium. This antioxidant helps in reducing the LDL cholesterol, which is not good and increasing the levels of good HDL cholesterol in the blood. The cranberry juice filters fat out of the arteries hence preventing it from sticking and causing a blockage. Alongside the protective ability of cranberries, they also increase the ability of the cell to absorb fats and metabolize. Taking of cranberry juice regularly reduces the risks of cardiovascular diseases by 40 percent.