^^^^ THIS. and weightlifting competitions have weight classes for a reason. i will tell you as a former powerlifter if i didn't make weight and had to compete in the class above me I was in big trouble. so 5-10 pounds make a huge difference. the idea is to be in your weight class with half a pound to spare.. during the week we would stay 2 pounds above where we needed to be.. then before the meet we would wear a sweater and run to shed those 2-3 pounds away... you learn how to eat when you compete believe me. back then i figured out quick to stay away from cake, ice cream, all dairy or i would fail to make weight ... then after weigh in's eat a lot of nutritious foods to nourish the body.. banana's, apples, maybe some chicken/turkey