Normally the goal with "moderate" protein intake is to only eat as much protein as needed, since restricting protein below that level will cause your body to consume its muscles. We moderates are only "restricting" protein compared to those who eat as much as they want or more (to theoretically be more satiating).

When I was eating extra protein and less fat, I was very thirsty all the time and it left me dehydrated and shaky even though I drank tons of water (and was probably excreting a lot of electrolytes). I find moderate protein and higher fat more satiating as long as I don't eat my pig-out triggers: dairy, grains, sugar & soy