This is a good time to mention that some people have a MYHFR genetic mutation. That means that the folic acid found in most processed breads and rice in the U.S. not only cannot be processed by someone with that mutation, but that the same folic acid interferes with the proper absorption of real folate.
This issue was only discovered a few years ago, long after folic acid (as an inexpensive source of folate) was pretty much mandated for U.S. wheat and rice products. Not a huge issue for most, catastrophic for those with that mutation.
I should have described that as an MTHFR mutation.