http://money.cnn.com/2016/06/16/pf/taxes/philadelphia-passes-a-soda-tax/index.html
Philadelphia has become the second city in the United States to approve a soda tax.The new soda tax would be on top of the 8% sales tax that already applies to soda in Pennsylvania. Soda is classified as food, which is tax exempt in some states, but not in Pennsylvania.
A tax like this will only hurt poor people, who often can't afford to buy healthier drinks, such as milk and juice. Besides, what business is it of the state's what people choose to eat and drink?