I'm no expert at this, so I can only go by my own expirances. I very seldom eat anything before noon although I am an early riser. Just not hungery. My last meal is always between 7:00 and 10:00 p.m. That's when I am hungery. I figure , feed my body the way it wants to get fed and don't fight it. I have been losing about 2 pounds a week since I started. So, I think it's working fine for me. If you are losing regularly, you may have answered your own question. Not sure how the release of growth hormone is affected by this type of eating.