Isn’t that just what sales tax is for? Another comment mentioned increasing your tax bracket if you bought too much meat, but trivially they could just add a sales tax on meat instead to the same effect.
With this they can make a progressive sales tax. "Oh, if you buy meat according to the national average, you pay the standard tax. But if you are eating more than that, you pay double."
You haven't eaten your five-a-day fruit and veg - more tax on your chocolate. Oh, you haven't reached your 10000 steps today either - more tax.
There are already ways to do this, you give everyone a “ration card” for 50% off up to N pounds of meat.
That would push up the price of meat for everyone.
(Really, HN? Voting down something that is 101 microeconomics to negative scores without one single argument?)
Thanks, that’s an informative reply I hadn’t thought of