It's amazing that low carb can be mentioned on a bike forum without hoots of derision! Things are really changing.
I've been below about 20 g of carb/day for three years now. I don't find it difficult at all. Eggs, bacon, ribeye steak, chicken, fish, salad, pot roast, flax bread, carbquik waffles, shrimp, crab, lobster, ribs, pork chops...
For blood pressure, see my post here:
http://www.bikeforums.net/showthread...1#post14247425