Just watched "forks over knives." will going vegan prevent heart disease, stroke, cancer, etc? sounds too good to be true -- is it accurate?

Too good to be true: Many illnesses mentioned may be helped but not prevented with a vegan diet. Genetics and environmental issues may also play roles in the development of many illnesses. Living an active life, exercising regularly, controlling your weight and having a healthy family history will pay more dividends than simply pursuing a vegan diet.

Probably true: This documentary does have its own agenda as well but most studies suggest that a healthier, balanced diet is likely to reduce the risks of cancer, stroke, heart attack, etc. If you properly watch your diet (even without being a vegan), you will likely reduce your health risks. Alternatively, there are vegans who over-eat and hence suffer from obesity (although rare). Consult your pcp please.