Good news for those with bunches of allergies and/or food sensitivities. Julian Bakery in San Diego makes a bread called "Purity Bread." It doesn't look like a typical loaf. Looks like they place the mixture into a cylindrical mold and steam it.
gluten-free, sugar-free, yeast-free, dairy-free, low-carb -- that is, if you care about any of these things
high fiber and protein -- keeps you pretty full!
sourdough-taste (can be positive or negative depending on your take)
doesn't taste like Sullivan Street Bakery bread : (
could be considered expensive
has an onion-like flavor (some may consider that positive -- personally, I'd prefer more of a neutral flavor)
You can find it in stores, but I found the markup exorbitant where I live. Julian Bakery sells it for $7 a loaf. My health food store sold it for $12. But if you order during the colder months, the bakery said they can ship via ground instead of air, cutting back on shipping costs. I just ordered 10 loaves and spent $6 total for shipping.