Research confirms 16:8 is about as affective as mild caloric restriction for weight loss, but that's pretty low on autophagy. The benefits of longer fasts in terms of sustained weight less are more questionable (to put it mildly), but happy to be proved otherwise by some serious research, as I have tried it many times and would love it if it somehow worked for sustained weight loss (given all the other benefits).
Edit: I refreshed and noticed another another page of posts, including some pretty ridiculous ones plus the mod advice above. Yeah, it's def enough. Carpe adipem et cibum keto folks!