I have not had to deal with heart failure but my whole family have some form of insulinemia. I had hypoglycenia, my brother, sister and mom are all diabetic. Since low carbing my hypoglycemic symptoms have vanished. migraines,itchy skin, insulin spikes are history. My joint pain also improved on Atkins and as my body became accustomed to IF, my joint pain has continued to improve to the point of being "cured".