Question: what are the best supplements to take for heart failure?
Answer: Multivitamin & mineral. Vitamins and minerals taken in appropriate doses may aid in lowering heart disease risk. ... 
Coenzyme Q10 (Co Q10) Coenzyme Q10 (CoQ10) is a substance similar to a vitamin. ... 
Fiber. The best way to get fiber is from food. ... 
Omega-3 fatty acids. ... 
Magnesium. ... 
L-Carnitine. ... 
Green tea. ... 
Garlic.