

If you knead bread by hand, it’ll have some human DNA in it from e.g your skin cells. It’s almost impossible to cook or process food while preventing it from getting literally any human cells into it, because humans are shedding cells and DNA literally all the time. You can wear gloves, hairnets, and frequently mop up, but eliminating the problem entirely is hard.
Both a vegetarian burger and a beef burger are probably going to have more human DNA in it than either a steak or a pot of black beans would.
Reddit very much depends on the subreddits you subscribe to.
Browsing /r/askhistorians or /r/programming isn’t really the same experience as r/memes or whatever. Not logging in to reddit makes it way worse since you only see the popular low-effort threads instead of better niche content.