Americans are prone to heart disease and heart attack because the present American diet is heavily biased toward processed flour, sugar and unhealthy fats which leads to unhealthy eating and a deficiency in the mineral – magnesium, which is vital to having a healthy heart. Between our mineral-depleted diet and the depletion of minerals from our soils and the fact that most Americans do not get the RDA for magnesium, over 75% of Americans are magnesium deficient. Our Heart Healthy Supplements Charts aim to decode benefits, side effects and sources of each supplement. Download yours for easy printing and review. Note: This download is a .pdf file which requires Adobe PDF Reader or compatible programs.