Plaque is a fatty substance that can clog arterial walls. If too much arterial plaque is present blood flow is restricted and arteries can harden. This can set the stage for a heart attack. While mainstream medicine will recommend drugs or surgery, natural treatments are available.
Exercise can make a significant difference. Half an hour to an hour of exercise most days can improve circulation which decreases arterial plaque.
Changing your diet is critical. Avoid trans fats, as well as refined and processed foods. Adding omega-3 fatty acids in cold water fish, some nuts and seeds, as well as healthy oils are good ways to change your diet. Omega-3 fatty acids in fish oil lowers blood pressure, decreases arterial plaque and lowers triglycerides.
"Digestive enzymes help break down the food our body does not digest. When taken on an empty stomach, they enter the bloodstream intact. As they circulate, they remove toxins and break down the fats responsible for plaque formation. Digestive enzymes in supplements and raw foods help prevent heart disease."
http://www.naturalnews.com/028835_arterial_plaque_remedies.html