I'll reproduce the list here, like a top-10 list the most effective is at the bottom (but it's also the hardest to accomplish):
12. Constants, parameters, numbers (such as subsidies, taxes, standards).
11. The sizes of buffers and other stabilizing stocks, relative to their flows.
10. The structure of material stocks and flows (such as transport networks, population age structures).
9. The lengths of delays, relative to the rate of system change.
8. The strength of negative feedback loops, relative to the impacts they are trying to correct against.
7. The gain around driving positive feedback loops.
6. The structure of information flows (who does and does not have access to information).
5. The rules of the system (such as incentives, punishments, constraints).
4. The power to add, change, evolve, or self-organize system structure.
3. The goals of the system.
2. The mindset or paradigm out of which the system — its goals, structure, rules, delays, parameters — arises.
1. The power to transcend paradigms.
Why I think this is relevant: Taxation is #12. It is not at all the most effective way, and is highly unlikely to provide us with a solution. #11 & #10 are related to another idea here, outright banning sugars or HFCS. It can work, but there are other issues (like portion size at restaurants) beyond just sugars. This isn't to say these can't be used, but they're unlikely to be effective. They also miss a major part of the diabetes epidemic which is the relatively sedentary nature of people in the US, and that requires more of a culture change. Sugars are the low hanging fruit, it'll help some, but it's far from a solution.
#6 has been applied for over a decade now in the US as restaurants have increasingly placed caloric values on their menus. And caloric values have been listed on food packaging for decades. But just having the information is not itself that useful unless people understand what to do with it or have the discipline to track and make use of it (or at least say, "Maybe I don't need that 2000 calorie hamburger and the 500 calorie fries and the 300 calorie drink.").
[0] https://donellameadows.org/archives/leverage-points-places-t...