The low carb stuff kills your energy levels, it makes you feel like a slug. The correct way is to get plenty of carbs, but to get the right ones at the right time of the day. Complex carbs in the morning to power you all throught out the day; a good amount of complex carbs before you workout so your body doesn't give out before the end of the workout; then a large dose of simple carbs after working out for your body to use to immediately replenish and repair itself; then a good fiberous carb right before bed to keep you metabolizing through out the night. Of course this all goes out the window if you don't work out, but in that case no amount of dieting is gonna help you anyways...
