text: I tried them when having some heart problems.  They did help and I did feel the benefits.  It's a coenzyme that your heart, especially needs.  But, the human body also produces this on it's own.  I suppose it would depend on whether or not your diet has sufficient coQ10 to work.\n\nIt's expensive, but if it helps, then hey - use it.\nAnother cardiac "helper" is Omega 3 and Omega 6.  They're essential fatty acids and much cheaper.\n\nMy advice would be to try it.  If you feel better, then continue.