That's just too extreme.You need more carbs than that for brain function.I agree with the cardio twice a day though.Maybe try to cycle your carbs something like 100,100,200(leg day),100.50,300,100-on the 100g days just have carbs after early morning cardio and after training.Keep your protein up around 250 -300g(from chicken,turkey,salmon,whey,fillet steak,white fish) and the fat will take care of itself although I would recommend 3-4 dessert spoons of Udo's Choice Oil or similar per day.
Good luck in achieving your goals.