RE: Sugar Tax: Germany to tax Coke Zero too? (Update: taxing Coke Zero probably ditched because of backlash but planned sugar tax remains)

It seems you are one of the few who thoughtfully adresses the issue. However, I don't think such Taxes are good for anything, other than just a revenue grab by a Government desperate to cover the holes in their budget, caused by their mismanagement of the economy.
Educate people - possibly put a law into place for clear warning labels, similar to cigarettes.
Taxes are a necessity, but excessive taxation is a leftist policy that can only lead to ruin - and history has shown the results.