It rather depends upon what one has for Breakfast. I'll have a quarter pound steak (sirloin or ribeye), with veggies at 7am, and then not eat again until 6-7pm

It rather depends upon what one has for Breakfast. I'll have a quarter pound steak (sirloin or ribeye), with veggies at 7am, and then not eat again until 6-7pm, when I'll have something light (say salad). No lack of energy during the day, no cravings. However this does tend to mean that one is largely running on burning fat during the day.