When I was a child during the Precambrian Era - ie the 1950s - many/most folks ate supper between about 5-6 pm. Breakfast the following morning was generally around 7 or 8 am. Bedtime, even for most adults, was 9-10 pm. So most people did not eat after supper or if they did it was something very small just before bed. For children it might be a cookie and a small glass of milk. Adults might have a cup of tea or a shot-sized ‘nightcap’. At any rate, ‘breakfast’ really was breaking the fast most mornings.
Although everyone was eating SAD - with lots more meat and saturated fat - obesity, diabetes and other metabolically related diseases were not the monstrous epidemic they became starting in the late 70s and continuing. Although the disastrous dietary ‘guidelines’ based on the fraudulent studies of Ancel Keys are the primary culprit, I think simply eating more, more frequently and later in the day and vitually all day with no respite also contributed to some extent.
So what I propose is Mike’s Easy Peasy Overnight Fast. Sure, some folks can jump right in and go OMAD with a 16:8, 18:6 or even 20:4 daily eating window. If that’s you, great! I admire you and wish you well. For the rest of us, I propose something far simpler and easier - a return to the eating pattern that was the normal way to eat for the vast majority of poeple before Ancel Keys.
It will also almost guarantee you will be in ketosis by morning and if you eat keto consistently all day every day.
Mike’s Easy Peasy Overnight Fast: time your last meal of the day to allow 12 hours before your first meal of the following day. Eat that final daily meal at least 2-3 hours prior to going to bed. Eat 3 or 4 meals during the day and don’t snack between them. If you get hungry between regular meals, then eat more at the meals. You can define ‘meal’ however you like.