DOES PASTA MAKE YOU GAIN WEIGHT!?

If that is all you have had all day, then no, it won't make you fat and you are seriously not eating enough. This kind of weight loss loses muscle, not fat, You are not getting enough veggies and not enough protein for a normal diet. I recommend you enjoy the pasta (1 c is 2 carb servings) and contact a dietitian or nutritionist ( a real one) and get help establishing a healthy eating plan.