Free t4

Less than 0.05% of Total Thyroxine (T4) is free or unbound. The hormone is made in the thyroid gland and is the precursor to T3. Production of T4 is dependent on levels of iodine, co factors like B6, Biopterin, Copper, Zinc, Vitamins B2, B3 and A. Considered by mainstream when combined with TSH to be the gold standard for assessing thyroid function., Levels are assessed to identify thyroid status (hypo and hyper), Iodine sufficiency as well as protein status and liver function.

Available Tests

Bespoke

FDX 00

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FDX Check

FDX 01

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FDX Inspect

FDX 02

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FDX Ultra

FDX 03

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Thyroid Inspect

FDX 15

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Femme Inspect

FDX 18

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Man Inspect

FDX 19

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Cardio Check

FDX 21

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Thyroid Ultra

FDX 22

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Thyroid Check

FDX 23

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Thyroid Check +

FDX 24

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Femme Ultra

FDX 25

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Femme Reset

FDX 26

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Man Reset

FDX 27

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Man Ultra

FDX 28

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Weight Aware

FDX 29

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Workout

FDX 30

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Workplace

FDX 31

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Femme Fertility

FDX 32

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Fertility For Men

FDX 33

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Brain Check

FDX 34

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Biology of Functions

FDX 54

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FDX Index Box

Index Thyroid

FDX 307

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Brain Check Ultra

FDX 350

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Thyroid Baseline

FDX 401

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Femme Essential

FDX 402

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Man Essential

FDX 403

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Femme Essential+

FDX 404

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Man Essential+

FDX 405

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Professional test kit instructions

Patient Test Info Sheet

Example Snapshot Report

The FDX Method

Find a Blood Draw

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