I did vegan purely because I was sick of the taste of meat, and hubby wanted to straighten out some of his medical issues and the doctors suggested vegan.
I do know that on the vegan diet, my uncle has not had a lot of his medical issues from having open heart surgery 8 times before the age of 5. He has life-long medical problems and a vegan diet relieves a lot of the problems and lets him go without some of his meds. He check with his doctor weekly to make sure everything if doing fine.
For my husband, it was hard to give up meat, but it did help with his problems. Now, we may go back to vegan, since he is experiencing heart problems unrelated to before.
For us, it was never about the "cruelty" to animals, it was always health related.
