Several scientific works show a positive linkage between veganism and the reduction of several degenerative diseases (cardiovascular diseases, hypertension, type 2 diabetes, arthritis, several types of cancer) and obesity. These studies show that vegans also have lower rates of mortality and morbidity (poor quality of life).
The position of the American Dietetic Association in the United States and the Dietitians of Canada is very clear: they say that a well-planned a vegetarian or vegan diet is beneficial for health. It provides necessary nutrients and brings benefits in the prevention and treatment of certain diseases.
Dr. Dean Ornish and Dr. Caldwell Esselstyn, two cardiologists of great reputation in the United States, have even proven that a low-fat vegan diet could reverse arterosclerosis (blockage of arteries). Years ago doctors believed that it was impossible to solve heart problems without surgery. We now know that the fork and the knife can in some cases help us to avoid using the scalpel. An increasing number of scientific studies suggest that a vegetable-based diet might revert many other health disorders, such as: type 2 diabetes, arthritis, hypertension, peripheral neuropathy, etc.