Donald Gazzaniga, diagnosed with congestive heart failure, was headed for a heart transplant - the only effective medical treatment. Urged by his doctor to keep his sodium intake "under 1,500-2000 mg. a day," Don headed for the kitchen and went to work. Aware that cutting out table salt is the barest beginning of a true low-sodium diet, Don devised recipes for delicious low-sodium dishes that added up to less than 500 mg. daily, 70% lower than...