Carbs were eaten during times of food scarcity. Pasta was made in response to a lack of available meat. Americans are terriblly fat now because we eat even more carbs. We weren’t like that before the introduction of the food pyramid and seed oils. We were incredibly fit. Many Italians are overweight. Especially in southern Italy. I saw it firsthand. Again, your body can survive in spite of carbs. However, you are not optimized.