I'm currently obese, with a BMI of 33.5 (5'5", 206 lbs). Last Sunday, I failed to complete a marathon by a hair. I only ran 39.8 km of 42.195 km (24.7 mi of 26.2 mi) in 8 hours and 20 minutes, past the cutoff time of 8 hours. I walked the remaining marathon distance back to the hotel. With MyFitnessPal, I hope to eat…