Wow you guys are hard core for beginners! If I do 5k I really feel it and dont really do more than 2 a week or at least until the muscle soreness passes. 5-6 times a week would finish me off!!!
I frequently get this and full blown IBS type symptoms after running and can't really eat anything less than four hours before run
Means I'm often starving but only doing 4-5k runs right now.... Eating well a few days before helps though. Also carbs work much better for me than protein in keeping stomach settled.