Healthcare as non-profit sounds so wonderful, and I'm not just saying that because for the first time in my adult life I have medical bills (that are extremely manageable and could be considered as optional visits).
I couldn't agree more with nutrition over calories. My opinion based on anecdotal personal experience is eating more vegetables helps me feel better. If people ate more stuff that goes bad and less stuff that's shelf stable for months the calorie surpluses would erode. My dad recently told me he, at 71, finally figured out how to eat. He said he told the same thing to his physician's assistant who said it's great and a lot of people never figure it out.
In lieu of ending capitalism, do we do the best we can with education? Education won't solve this for the masses but can help individuals.