You Don't have be to Jewish
to Eat Matzoh
(Although you may have to live in a neighborhood with at least some Jews in order to find it.)
As the Jewish holiday of Passover is about to start, it is appropriate to talk about matzoh as an appropriate food for LS/LF diets. Matzoh is a traditional food for this period when observant Jews do not eat bread and other "leavened" products. It is basically made with flour and wheat. However, some versions have some oil added, possibly eggs, and maybe salt - so look for the basic version and confirm the ingredients.
A variant is "matzoh meal", basically ground matzoh. It is a useful alternative for breadcrumbs in many recipes since it contains no fat or salt. Another variant is "matzoh farfel", pieces of broken matzoh in the 1/8"-1/4" range. These can be added to soups like crackers with the advantage that they are salt free.