Have your genes (DNA) tested for MTHFR mutation. My doctor tested me and it changed my life. I do well on gluten free, not because I’m allergic to wheat gluten. I do not produce the enzyme to convert synthetic B vitamins to usable folate. Mat rice flour products are nott “fortified or enriched.” These genetic mutations which are now common in America and likely the result of environmental toxins and vitamins made in a lab added to almost all food the past 60 years. We pay for it with illness, joint pain, mental health issues and gut inflammation because we can’t detox. When my gallbladder came out my surgeon said it was a nasty toxic waste dump but had no reason as how it got that way. Now I know. Eat nothing or put anything down your throat that contains folic acid. Eat clean unprocessed foods and fortunately B vitamins that can be processed without producing this enzyme is actually available…methyl folate, methyl B 6 and B12 if you are deficient in these. Eat lots of greens like spinach or add to smoothies. If you don’t want a genetic test, ask to go over your last lab test with the Doctor. A good clue you have the defect is high homocysteine and high B12 which your body can’t convert to usable form. It just stays in the blood.