Please don't flame me, but . . . I am fairly sure it is unsafe to eat a low- or no-carb diet while pregnant. The ketones your body excretes (in urine and breastmilk) are very unsafe for the baby. If you don't eat grains, but lots of fruit and veggies, you are probably safe. Also, I would be concerned about a high animal protein diet -- unless you are eating organic meat and dairy, you are likely ingesting a large amount of antibiotics and growth hormones, certainly not good for a baby. Amaranth is a grain that is a complete protein, and beans and brown rice are both carb and protein rich, so I am baffled by this whole "high protein-low carb" thing. Too be honest, it seems very unsafe to cut out a whole category of food. What some of the other posters said about modified low-carb eating seems safer. Personally, I try to eat whole foods, in as close to their natural state (ie fresh) as possible. So I would choose brown rice over white, whole wheat flour over refined, etc. Then you are getting the proteins these foods naturally contain, not to mention tons of vitamins, minerals, and fiber. I'm sorry, I don't mean to sound preachy, I would just be very careful if I was pregnant or nursing.