Sugar and HFCS = bad. What about carbs? It seems that we are throwing out the baby with the bath water. Does anyone have any good studies about carb consumptio

Sugar and HFCS = bad. What about carbs? It seems that we are throwing out the baby with the bath water. Does anyone have any good studies about carb consumption not focused on sugar? Something like Keto diet (no carbs or sugar) vs Plant Based (lots of carbs, no refined sugar)