There is no such single concept as a vegan diet. Drinking coca cola is vegan. "Vegans" can have a diet worse than those who simply consume animal products. I did not say the answer is a vegan diet, commenters here kind of assumed it.
Well, you now get all subtle on us, whereas a few comments before you summed consuming meat as "eat death, get death".
Turns out there's not a single concept as a "non vegan diet" either. It doesn't mean one gorges on huge steaks all day, or one doesn't have a perfectly healthy and balanced diet.