There is no evidence that completely avoiding, smoking, milk, sugar, alcohol, processes foods, or the deadly gluten will cause you to age any slower. Most of it is genetics my dad smoked from 15 - 35 and if we compare pictures there is not that much difference in our complexion we both have wrinkles at the same age, the same goes for my brothers who also don't smoke. I am by no means saying doing any of these things in excess will not have consequences but each of these fad diets that cuts out the evil food de jour has shown the same effectiveness. First it was cutting out fats and evil red meat, then some fish became bad, then it was sugar, then all carbs, now it is gluten and processed foods. I would rather enjoy my scotch, cookies, Cheetos, steak, and bacon and die early enjoying life then live longer eating soylent green.