Here is an awesome blog post I came across on bangingbirdfood.blogspot.com.
Marsha compiled a very inspiring list of vegans/vegetarians whose ages range from 70-100+ years old. I am linking to her post here. Go to her site and be blown away by these amazing senior citizens. They even share their secrets for looking and staying so youthful.
Also check out the recipes on her blog. There are a lot of delicious foods to tantalize your eyes and stomach.