Australian government sources say low income Australians are over 2 times more likely to die from preventable deaths than wealthier Australians. So the obvious way to improve health is remove regressive taxes, increase their incomes to track cost of living increases and do something about rents.
There are always classist do-gooders. Taking indigenous kids from their families. Putting welfare payments on cards to control spending. What they never want to do is lower rents and utilities or raise wages or benefits. The data is very clear. Poverty kills. Put a tax on one junk food and I guarantee supermarkets are going to increase their margins on healthier alternatives to match leaving everyone worse off. Shareholders are the only ones who benefit.