Before anything else, one of the factors to consider is adequate hydration. Sometimes people confuse thirst as a signal of hunger for food, and then start snacking or binge eating.
Another big component of hydration is electrolytes, especially sodium. Particularly if you're eating lower carb, drinking coffee, doing some sort of fasting, and/or exercising. If you're doing any of those things, the RDA of sodium is likely nowhere near enough for you.
