Comment by vanattab
This is the correct answer. Alone is not really a how to live in the woods show, it's a managed starvation show. The contestants are limited to about a 1 sq mile area which may or may not have a good source of clay. They purposely set them out just a few weeks before winter so they do not have a long time to prep. Conserving and replenishing calories is the name of the game.
Humanity didn’t really take off until we figured out how to make use of inedible calories though. Making lots of tea and thin soups in the winter should have been a target for many of them.
One person did quite well finding wild onions but as I recall got some stomach distress from them. Raw onion doesn’t agree with people when you aren’t eating much else. But those greens would have made soup for days.