Keep reading about all the debates about food , obesity etc. I used to be obese I had weight loss surgery a few years ago now my BMI is 21 from 41. I've lost half my body weight it's no issue staying slim as I physically cannot eat much even crappy foods . I eat a relatively healthy diet now because I need too or I will be malnourished.
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I will say though in my obesity journey is it doesn't matter how much I educated myself about food , cooked healthy meals the allure of fatty burgers and junk was so tempting. I loved fatty food it tastes better. Even gourmet eating out I prefer rich sauces with fat.
I generally believe even with education , extra taxes some people will choose to eat shit food because it tastes so much nicer than 99 percent of healthy food.