Whenever I tried to get all my nourishment for the day between sunrise and noon, I ended up having to eat larger servings, than if I simply allowed myself to have three more moderately sized meals, spread through the entire day. It seemed to turn out that just eating less,
was better for meditation practice, than sticking with this ideal of not eating after noon, which as a layman with kids to drive around, and look after (when they come over), turned out to be a bit impractical for me.
But if I did not have many duties to perform, or many practical issues to attend to, I can see how not eating after noon would be possible and even desirable, because with less need for calories, the two servings (breakfast and lunch) would not need to be so substantial. But for a layperson, I really think that striving for this ideal is not as important, as just being more moderate
with food, and stopping when one has had enough, rather than continuing to eat for the taste / because of desire. And on that note, I think I used to eat much
more than I needed to. One wonderful outcome of stopping out of consideration for how much the stomach can comfortably digest (as opposed to how much one wanted
to eat), is that one doesn't get bloated, or get indigestion, and ironically has more
energy, than if one had stuffed oneself. It's true: eating moderately one has more energy, than if one eats a lot.
My two cents' worth