When taking Dr Tobias Colon 14 Day Cleanse it is very important to have enough bulk in the diet which is found in fresh fruit, vegetables and leafy greens. Sufficient water intake is important to help process and move excess waste from the colon, and so we recommend to drink 80+ oz of water a day. In addition to diet, sufficient physical activity such as daily walks or other forms of exercise may also help with the cleansing process.