No need, especially at those levels. I've run 3-5 miles, biked 20 miles, etc... all on no carbs (even in a completely fasted state).

Carb loading would be for extremely intense workouts or weight lifting sessions. Even then, there's reason to suspect it's not necessary.

Do you exercise? I'm trying to do 20g of carbs and under pet day. If I decide to go to the gym or take a 3 mile walk do I need to eat carbs before hand? I assume I do. How much though when on a low carb diet?

That depends on the individual.
I'm a 45 yr old woman, 126-127#'s I walk 3 x daily (30 min. @ a time) and weight train 3 x a week (progressive loading).
I eat less than 20g of carbs per day and I have yet to fail a lift or pass out during a walk :laugh:

All of my carbs come from veggies with the odd low carb pita every now and then.

Some people can't function, but I've been at it for 2 yrs now and do quite well.

I keep Smarties candies in my gym bag & pockets when I walk. 5 discs are equal to 2 g of pure glucose. I keep them for emergencies, but have never had to use them. Here's a handy dandy chart in case anyone's interested:

http://www.phlaunt.com/lowcarb/19058561.php

I'm surmising that the type and level of daily activity I do, is enough to deplete whatever glycogen I may have, although I admit to occasionally doing jumping jacks or arm circles to make sure. Glycogen in the muscles cannot be used for anything else, so once it's there, I want to use it to continue to tap into body fat.

ETA: I've still got 10 mayyybe 15#'s to lose