Functional Medicine Lab Values Chart

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Functional Medicine Lab Values Chart

In some ways it seems surprising that there are not many functional medicine lab values charts online, but this may be due to the way that functional medicine is practiced. We are going to give you a functional medicine lab values chart further on in this article, so please keep reading.

As guiding principles, most functional medicine clinicians and teachers really value the uniqueness of the individual. Therefore, while it is useful to have a list of reference ranges that functional medicine doctors use, it is also important to understand that while these numbers are important and provide a guide, that we must treat the actual person, which is much, much more than numbers.

For example, some of the research we review in the hormone section of our functional medicine course at our functional medicine school shows that reference ranges for sex hormones vary to a much larger degree than normal functional medicine reference ranges indicate. Therefore, in utilizing the information in this functional medicine lab value chart, please remember that even these reference ranges, while more tuned into optimal levels than standard reference ranges, they are still just a guide. (Check out our free Online Course in the Advanced Treatment and Understanding of Chronic Fatigue Syndrome Here.)

Functional Medicine Lab Value Chart


TSH:0.5-2 uIU/mL
Free T4:1-2.3 ng/dL
Free T3:3.3-8 pg/mL
Reverse T3:11-18 ng/dL
TPO Antibodies:<2 IU/mL
TG Antibodies<2 IU/mL
Total T46-12 ug/dL
Total T3100-180 ug/dL
T3 Uptake28-38%

**30% increase in thyroid hormones and a decrease in TSH with pregnancy is normal.


RBC4.4 – 5  (can be higher at higher elevation)
HBG13.5-15 g/dL
MCV85-92 fL
MCH27.7 – 32 pg
MCHC32-36 g/dL
Neutrophil/Lymphocyte Ratio2/1

CMP and Other Markers

HgA1C<5.4 %
Uric Acid3.2 – 5.5 mg/dL
BUN13-18 mg/dL

.65-.9 mg/dL for Females

.85-1.1 mg/dL for Males

eGRF>59 mL/min/1.73
Sodium134-140 mmol/L
Potassium4.5- 5.1 mmol/L
Chloride100-106 mmol/L
CO222-27 mmol/L
Anion Gap

Calculation: Na + K – CO2 – CL = 6-16

or: Na – CO2 – CL = 3 – 11

Phosphorus3.5-4.0 mg/dL
Calcium9.2-10.1 mg/dL
Magnesium2.0-2.5 mg/dL
Total Protein6.9-7.4 g/dL
Albumin4.0-5.0  g/dL
Globulin2.4-2.8 g/dL
Bilirubin direct0-0.4 mg/dL
Total Bilirubin.1-1.2 mg/dL
Alkaline Phosphorus44-90 IU/L
LDH135-180 IU/L
ALT< 26 Females   <30 Males
AST< 26 Females   <30 Males IU/L
GGTP10-21 Females     10-29 Males IU/L
TIBC250-350 ug/dL
Serum Iron40-135 ug/dL (if goes on the low end, make sure transferrin is okay)
Ferritin30-100 Females      30-200 Males
Cholesterol150-220 mg/dL
HDL55-85 mg/dL
VLDL<30 mg/dLa
LDL120 mg/dL *
Cholesterol/HDL Ratio<3
CRP- hs<1
Homocysteine<7 umol/L
1,25 Dihydroxy Vitamin D (D2 + D3 fractionated by LC/MS-MS)30-60 pg/mL
1, 25 Dihydroxy Vitamin45-80 pg/mL

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