BS. Vegan -- if you supplement with B-12 -- can be a very healthy diet. There are many elite athletes who are vegan. I eat mostly vegan, and I (humbly) can hold my own in my age group.

Here's a rational thought: In the Adventist 2 Study of 25,105 men, those who ate vegan had fewer deaths than omnivores:

• 19% fewer deaths from cancer,
• 42% fewer deaths from cardiovascular disease,
• 55% fewer deaths from ischemic heart disease.