The liver is the largest gland of the human body that produces bile and performs up to 500 different functions. Liver problems weaken the whole body. The liver is damaged by chemical contaminants present in food: heavy metals, pesticides, nitrates, preservatives, artificial colors. The liver also badly tolerates drug abuse, excessive alcohol consumption, and a fatty and hard to digest diet. Liver supplements will help you protect liver cells from damage and promote liver function and health.