We all know the liver is vital. However, many people could use a little extra support. Basically the liver filters all impurities from the bloodstream -- pollution, preservatives, pesticide residues, drugs, alcohol, and other toxins. All these toxins we encounter can begin to tax the liver. Some potential symptoms of an overburdened liver can include rough dry skin and acne, constipation, gas and bloating, frequent headaches, and premenstrual syndrome. Try incorporating these cleansing foods in your diet to help flush toxins away.