Simple concept. Compare your liver to your car's oil filter. Your liver filters the bad stuff from your blood just as the oil filter in you car removes the bad stuff and keeps it from hurting your car's engine. The best way to excellent health is to keep your blood clean. This is done by keeping your liver clean (since you can't change the filter like you can in your car). We all know what happens when you don't change the oil and filter in your car. It dies!