The less chemical additives, preservatives, and processing the food goes through, the better the food is for you and your liver. Pick the apple over apple juice, or the natural apple juice over, say, an apple-flavored product. The same is true of other foods.
Try to eat something crunchy with every meal. This does not mean a food that has been artificially crunchified, like potato chips, but foods with a natural crunch to them, including fruits, vegetables, and greens that haven't been cooked.
The importance of fiber to the liver cleanse process cannot be overstated. When your liver wants to get rid of a toxin, it dumps it into the digestive tract. If there is enough fiber around, this toxin is taken out of your body with your next bowel movement; if not, these toxins can be reabsorbed into the blood stream and the liver has to deal with them again. Whole grains are a great source of fiber, as are many fruits and vegetables. If eating enough fiber is not possible, use a natural fiber supplement. High fiber is one of the most important changes you can make to your diet!
Make sure you are also getting some protein. The liver needs to have enough proteins in order to function well. Good sources of proteins include beans, nuts, and fish, and small portions of beef, chicken and other animal proteins.<
The liver thrives on good fats such as omega 3 fish oils and healthy omega 6 oils (olive or grape-seed oils), and is bogged down by bad fats such as trans fatty acids, any hydrogenated fats such as margarine, and many of the omega 6 oils such as corn, safflower, and Canola oil. Make sure you are getting enough good omega 3 oils such as those found in fish or fish oils. When cooking, use extra virgin olive oil. Olive oil is a very stable fat, handles cooking well, and has multiple research studies supporting its health benefits.
