I beleive in a healthy diet, but read recently about Warren Buffet age 94 and his terrible diet. Mcdonaldś every morning, drinks 4 to 6 Cokes a day, Dairy Queen fequently, burgers, chocolate, oreoś, etc. So, I guess you never know how a body will react/sustain itself.
Here is a quote form him:
"I think happiness makes an enormous amount of difference in terms of longevity. And I'm happier when I'm drinking Coke or eating hot fudge sundaes or hot dogs." (CNBC)