Iron

As mentioned, the vital conversion of storage T4 to active T3 depends upon a number of factors including correct levels, neither too high nor too low, of iron in the blood.

Therefore it is important to test four iron labs:

  • Ferritin,
  • % Saturation,
  • TIBC, and
  • Serum iron.

Each provides an important and exact picture of how your body is functioning.

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