Heart health supplements are designed to support cardiovascular function and promote overall heart wellness. Common ingredients include omega-3 fatty acids (from fish oil), which help reduce inflammation and support healthy cholesterol levels; Coenzyme Q10 (CoQ10), which aids in energy production and may benefit heart muscle function; and magnesium, which helps regulate blood pressure and maintain normal heart rhythms. Other supplements like plant sterols, fiber (such as psyllium), and antioxidants like vitamin E and polyphenols are included to lower cholesterol, improve circulation, and reduce oxidative stress.