Folate is essential for methylation, thyroid function, and overall health. But there’s a lot of confusion about the different forms, especially if you’ve heard about MTHFR gene variations. Here’s what you should know: * Folate is the natural form in foods. * Folic acid is the common synthetic form in fortified foods and > supplements. * MTHFR variants are very common—up to 40% of people—but most > don’t cause problems. * Poor methylation shows up as high homocysteine (>12μmol/L), not > just on a