When most people say 0 carbs they are generally referring to grains and sugar. The amount of carbs you get from vegetables and fruits, even super sweet fruits, is next to none even if you eat salads for breakfast, lunch, and dinner. Your body makes more glucose in a day than you get from eating like that (720 calories worth or about 180g of sugar). It's hard to eat that much salad in a day. And you don't get the mood-boosting action of the carbs like you get from bread because they are locked away in the soluble and insoluble fiber. That's why lunnster says, justifiably, it's not very fun.
Hope this clears that up.
1) eat real food - more vegetables, moderate meat, moderate fruits, less grains, less sugar, less vegetable oils.
2) exercise - moderate intensity cardio, sprinting, heavy lifting, dedicated stretching and mobility.
3) live - relax, de-stress, meditate.
Disclaimer: I'm not professionally qualified to make any formal recommendations. I've just done my homework and I'm my own guinea pig. All of my data, unless otherwise cited, comes from a sample size of n=1 (me).