Late-night eating increases blood glucose, insulin, and core body temperature, leading to suppressed melatonin release and a 45% drop in leptin, which can cause increased food intake the following morning.

“eating late at night when you're making melatonin two to three hours before bed you're basically inhibiting insulin secretion and I don't like there's data showing that you will you know your glucose levels will be higher with the same exact macronutrient intake as if you eat it earlier”