It is not possible to predict the individual effects of taking these supplements in your particular case because there are many factors to consider, such as current state of health, use of medications, lifestyle, previous medical history and so on.
Supplements can play an important supportive role in preventing and treating health problems and in optimizing health. Fish oil has been well studied and found to reduce risk of heart attack and stroke. It can also lower triglycerides, cholesterol, clotting and inflammation – all risk factors for heart disease. Coenzyme Q10 is an important antioxidant involved in energy production in our cells. It may be depleted as we age and in those taking certain medication such as statin drugs. Supplementing with Q10 may also offer modest benefits for lowering blood pressure.