Anyone here break a 4 hour marathon and still maintain an LC diet? How do you do it? I thought you need to have lots of carbs to run and that speed for that distance?
My stats
Age: 38
Gender: Male
Rest Heart Rate (Avg): 44
MHR: 186
Body Fat (Measured by Omron hand-held BIA) 12.7%
Weight: 170
Height: 6 feet 0 inches
Triglycerides: 32
HDL: 94
LDL: 54
Waist: 33 inches

Best Maraton time: 3 hr 37 min 23 sec in Chicago this past October. Need to get under 3:15 for Feb 22 Marathon in Florida but suspect lack of carbs may hurt me. I have done very well on Atkins but sometimes feel like I have lower energy during long and 1/2 long runs.
Much thanks for your advice.