Supportive research shows that consumption of EPA and DHA omega-3 fatty acids from fish sources may reduce the risk of coronary heart disease. The natural fish oil concentrate used in this softgel is manufactured under strict quality control standards. It is tested to be free of potentially harmful levels of contaminants (i.e. mercury, heavy metals, PCB’s, dioxins, and other contaminants). This cholesterol-free product can meet the strict dietery requirements of a heart-healthy diet.