Yes. If it’s done properly. I live on virtually zero carbs every day and let my liver make up the balance of glucose. Carbohydrate in and of itself is a fuel source, nothing more. As with any diet the important thing is making sure you get plenty of micronutrients. I live exclusively on animal produce and try to eat plenty of organs. Seems to work for me. Never felt stronger or healthier. Obviously I’m not advocating for everyone to do the same, but the point is that your chosen fuel source is secondary to the amount and quality of vitamins and minerals. In my opinion.