Will this plan Benefit or worsen?

After reading Mark Brittman's article "Bad Food? Tax it, and Subsidize Vegetables" I found it quite brilliant yet risky. His idea is to tax all the unhealthy foods so that better health is increased and decreases the diseases that junk food causes. Taxing them would also generate billions of dollars annually. I found this to be very beneficial because it will benefit both the people's health and the economy. The only issue would be that it may cause conflicts between the food industry as well as the low income families. Today diseases have been increasing dramatically such as diabetes, heart attacks etc. and yet we have done nothing about it. You would think we would need to make a big change as a result but we have not. That is why Brittman has come up with this idea to discourage bad eating habits. We are suppose to be helping but it seems as if no change has been been and it feels careless to the people. If anything they are only caring about the profits being made instead of our health. But according to Brittman, this change will make a high increase in profit. If we decide to tax unhealthy junk food, would it really benefit us? or will it make a terrible commotion as in protests etc? Will it hurt the low income dramatically? or will this be the next huge beneficial change? I would say we should go for it and see what changes it can make. The more decreases we find in diseases, the better.