Trust your body
Sorry, I guess I'm a dummy, because I didn't really consider the starches in veggies and fruits.
: I guess it's because it is most abundant and usable in grains... but surely you could get it other ways. The problem only starts when you have no carbohydrates and your body is forced to draw on protein/fat stores. I guess the reason why I was so gung-ho about grains was because I've never known anyone who had any reason not to eat grains unless they had an actually allergy or condition preventing them from doing so.
Glucose is used as the energy currency in every single cell in our body. Our bodies use glucose to go through respiration, the process by which we create energy. Glucose is the main component necessary to undergo respiration. Without it, we could not create energy. Ketosis actually doesn't have much at all to do with respiration. Ketosis occurs when you have no carbohydrates ot not enough carbohydrates in your body, and your body is forced to begin depleting your fat stores in an attempt to make energy, leaving behind a by-product called a ketone. A build-up of ketones puts stress on your filtering systems, as ketones are acidic, and too many can disturb your body's delicate acid-alkaline balance.
Overall though mamas, you've gotta do what you've gotta do to make your bodies feel good. Your intuition will tell you if what you're doing is unhealthy. I'm sure that as long as you're getting some good carbs from fruits/veggies/beans, you'll be fine, but all all-out Atkin's approach does harm.
Trust your body, not a textbook. I was just trying to contribute some textbook info for interest's sake.