Want to know the top three tips for cleansing? All equally important, two of them are simple: Eat healthy foods in small amounts, and drink plenty of water. The third tip, however, is just as vital, and sometime overlooked: support your liver. This hard-working organ filters all the blood in the body several times a day, breaking down toxic substances and sending them on to be eliminated. Because the main goal of cleansing is more efficient elimination of toxins, liver support and protection is extremely important. Experts recommend the herb milk thistle for the job.