A whole foods vegan diet may be a healthy diet for some people. The diet may be healthy for people who eat the standard American diet which is full of processed foods and junk foods. If you decide not to go whole foods and just eat “vegan”, including your favorite processed vegan “meats” made to look like real meat and other varieties of processed vegan treats you find in the popular grocery stores, I would say this is never a good option if you are seeking long term health.