Otherwise, 300 mg a day is a good recommendation for a healthy individual, but as long as you get plenty of physical activity, end bad habits, limit saturated fat intake and eat LDL-reducing foods, your blood cholesterol levels should remain healthy.therwise, 300 mg a day is a good recommendation for a healthy individual, but as long as you get plenty of physical activity, end bad habits, limit saturated fat intake and eat LDL-reducing foods, your blood cholesterol levels should remain healthy.