The main reason diabetics are cautious when it comes to potatoes is their very high glycemic index (GI) value. The glycemic index is important for diabetics because it is a measure of the impact a particular food has on blood glucose levels once it has been digested.
The two most common causes of congestive heart failure in dogs are mitral valve insufficiency and dilated cardiomyopathy. In cats, hypertrophic cardiomyopathy is the most common heart disease. Genetic predisposition is clearly the most common underlying reason for the development of congestive heart failure.
Low blood oxygen (hypoxia) will also cause your dog or cat to breath more rapidly. The two most common causes of low oxygen are heart failure and anemia. The most common causes of heart failure are heart valve failure in older pets and heartworms (usually in younger dogs).