How much are you running? If it's a 30-45 minute run ~3 x a week you will probably be OK on a lower carb eating plan. If you are marathon training or have some goal races, you might experience fatigue.<br><br>
There's variation in how individual body's use and process fuel. I train for marathons and usually average 50% or slightly less calories from carbs. For other distance runners, that's low.<br><br>
Eating enough unsaturated fats and soluble fiber (from complex carbs), and limiting saturated and trans fats, often prove to be a more effective and specific dietary intervention for cholesterol.