This test is a simple cheek swab done at home. MTHFR is an enzyme that helps process folate. Women with the MTHFR mutation cannot convert folate into its active form, l-methyl folate. During pregnancy, women who test positive for a mutated MTHFR gene may have a higher risk for miscarriages, preeclampsia, or a baby born with birth defects, such as spina bifida. Research is currently being done to see if women with hyperemesis have the MTHFR mutation. Buy yours today to see if you the mutation, and then supplement with l-methyl folate.