Artificial Intelligence Meets Nutrition - The Food Rush

How many people start every year with a promise to themselves that they are going to eat better, drink less and exercise more? I don't have any fancy stats to hand, but I'll go out on a limb and say it's a lot of people (including myself). Of these people, how many are still on track a few weeks later? Even with all the will power in the world it's really difficult. Unfortunately, there's no magic bullet either, nothing that can convert a pizza-eating wine guzzler into a quinoa loving, spirulina sipping health fanatic.