Use CoQ10 Daily Levels of CoQ10, a nutrient found in organ meats and made by our bodies, start to decline in our mid-30s. Supplements help the heart and all our other muscles to generate energy more efficiently. Studies have shown that CoQ10 improves heart function among people with heart failure— even in severe cases. It also protects the heart against disease, and slows down the aging process in this vital organ. CoQ10 and ribose work together synergistically.