grindorsey,

For short runs it really shouldn't matter to have carbs. You store plenty of glycogen to get you through. There are some fantastic endurance supplements that can help a lot too.

Runners in the past created lots of myths about the need for carbs during races and we've all pretty much bought into these myths.

I personally have lost about 44 pounds in the last two months on a almost carbless diet and spend most of the time feeling like the energizer bunny (with very rare low energy points for an hour or two). I train on a stationary bike at a level that is equivalent to an extremely slow jog (like running a 11:30 mile). I can do this for an hour and a half at a time and get off and go into work for a full day an hour later.

You might check your thyroid to see if it's hypo. Many people have low thyroid.

john,

That was an incredible run for your first 5K after weight loss.

"I personally have lost about 44 pounds in the last two months on a almost carbless diet and spend most of the time feeling like the energizer bunny (with very rare low energy points for an hour or two). I train on a stationary bike at a level that is equivalent to an extremely slow jog (like running a 11:30 mile). I can do this for an hour and a half at a time and get off and go into work for a full day an hour later."

I don't know if this makes sense to you but I can eat VLC and do things like spinning and swimming and aquajogging and long walking, but running I need carbs. I experience running very differently than other forms of exercise - even intense exercise.