I turn into a zombie whenever I eat carbs during lunch.
Try it and see - the next time you go out to lunch, don't eat pasta, bread, potatoes, corn, tortillas, dessert, coke.
Have a steak and green veggies. I can eat an enormous 24oz prime rib plate and not suffer the zombie state that I would if I ate a hamburger and french fries.
Don't discount a burger without the bun, and a mostly greens salad... I'm not strictly paleo, but if I avoid going over 100g or so of carbs a day, I tend to do a lot better.
Try it and see - the next time you go out to lunch, don't eat pasta, bread, potatoes, corn, tortillas, dessert, coke.
Have a steak and green veggies. I can eat an enormous 24oz prime rib plate and not suffer the zombie state that I would if I ate a hamburger and french fries.