Hypothyroid patients must have their doctor monitor their TSH, T4, T3,
and thyroid antibodies often in order to optimize
thyroid function. If any of these values are off, then the thyroid function will be compromised and thus the MTHFR enzyme will be as well.
It is critical that doctors monitor all these markers and not just TSH. TSH measurement by itself is worthless. It is similar to someone asking you where the car keys are and you reply back, “Over there.” ‘Where?’ you ask again.