A well planned vegan diet tend to provide more fiber, antioxidants and beneficial plant compounds than the traditional Western diet. It's also richer in potassium, magnesium, folate and vitamins A, C and E.
Eating a plant based diet can help you lose weight. Many vegans experience a large weight loss when they first give up animal products.
Vegan diets tend to promote lower blood sugar, and better kidney function. Vegans also have a lower risk of some cancers, and heart disease.
I've been vegan for seven years. It's awesome. There is a lightness that comes with not eating animal products. I no longer feel heavy and sleepy after eating.