MTHFR Deficiency
“The protein encoded by this gene catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate, a co-substrate for homocysteine remethylation to methionine. Genetic variation in this gene influences susceptibility to occlusive vascular disease, neural tube defects, colon cancer and acute leukemia, and mutations in this gene are associated with methylenetetrahydrofolate reductase deficiency.”
An easy test to perform at home using a swab test kit, this can determine if you have any genetic variations in the gene. Here is the link to the article. You can find many more topics regarding this genetic variation.