Body builds in games, and getting buff in a post-apocalyptic world *lifted*

A forest is made of many types of trees, only some of which will be nut producing, if any. If you go to an English wood, you'll maybe find some hazelnut or chestnut, which may provide something in season. The large quantities of nuts we produce that sustain vegans/vegetarians are the product of farming like everything else. In a PA world, depending on where you live, there won't be peanuts, brazils, or almonds.

If you haven't enough grass for grazing animals, woodland grazing animals, the deer and pigs, can find plenty to eat in a forest and convert all the woodland plant matter into human consumable plant matter.

We'd have to assume that a quick apocalypse will push humanity towards a pre-farming opportunistic diet. Hunting and gathering will be the mainstay and it'll be hard to get enough food to buff up. The only realistic chance of getting enough protein would be eating meat, unless you happened to live next to an abandoned peanut grove.

Mushrooms will provide a good food source (yuck!) and would be easily cultivated. I imagine 'shrooms would become the earliest staple. Especially if people are walking around with mushrooms growing out of their heads...

 

In the TLOU universe I can't imagine anyone wanting to eat a fungus.

 

Spoiler