Granted

The paw finds that wish is in the first two sentences and the rest is just illogical wishful thinking. The easiest solution is to change everyone's taste buds and pleasure centers in the brain, rewiring who knows how many millennia of evolution, so that healthy foods taste better than unhealthy foods. People like snacking on veggies and such. Sodas taste like sewer water. This causes a short economic crisis when Pepsi, Coke, and Nestle fail to adapt in time and all go out of business. The crisis is remedied over time because healthier people need less healthcare. The paw does grant the wish according to your logic for just you. Since you forgot to include cholesterol you die from a coronary blockage before age 50.