The first time I asked for an actual copy of my own lab work, I felt weirdly like I was asking for something I wasn't supposed to have.
I had gotten the phone call. Everything looks normal. Great, thank you, hang up, go make dinner. But I didn't feel normal, and eventually I called back and asked them to send me the paper.
Then I sat down with it and realized nobody had ever shown me this. Not the numbers. Just the word.
That is the whole reason I want to write this post. Not to talk you into a stack of expensive tests. To help you get more out of the ones you may already be getting.
"Normal" is a range, and the range is wider than you think
Standard lab ranges are built from the population of people who came in to get that test done. That group is not a group of thriving people. It includes plenty of us who are tired, inflamed, stressed, and running low on things.
So the range tells you whether you are unusual compared to that crowd. It does not tell you whether you feel good, and it definitely does not tell you where you were five years ago.
This is why I care so much about two things: getting the actual number, and watching that number over time. A ferritin of 18 and a ferritin of 65 are both going to print without a flag next to them. They are not the same experience to live in.
This is why I look at the functional range, which is based on a group of only healthy individuals and gives tighter, but optimal ranges.
The panel I think most people should actually have in hand
If you are going to your annual physical anyway, this is the conversation worth having. Ask by name, because "check my thyroid" usually gets you one marker.
- Full thyroid panel. TSH, free T4, free T3, and thyroid antibodies (TPO and thyroglobulin). Most standard draws are TSH only. TSH is a pituitary signal, not a measure of what your tissues are actually receiving. Antibodies can be elevated for years before anything else moves, and that is genuinely useful to know early.
- Ferritin, plus a full iron panel. Ferritin is your stored iron. You can be very low in stores and still have a totally fine hemoglobin, which means a basic CBC will look clean while you are exhausted and losing hair. Ask for the number, not the flag.
- Vitamin D (25-OH). Cheap, common to be low, easy to track.
- B12, ideally with MMA or homocysteine. Serum B12 alone can look fine while things are not fine at the cellular level. This matters a lot if you are vegetarian, over 50, on metformin, or have been on an acid reducer for a long stretch.
- Fasting insulin and HbA1c together. This is the one I wish everyone would add. Fasting glucose is often the last thing to go wrong. Insulin can be climbing for years first, quietly, while your glucose stays "normal." If you only ever add one test to your annual bloodwork, I would pick fasting insulin.
- A full lipid panel, and then do the math. Look at your triglycerides divided by your HDL rather than just the total cholesterol number. It tells you more about metabolic health than the headline number does.
- CRP. A general inflammation marker. Not specific, but a useful yes-or-no on whether something is smoldering.
- CBC and CMP. Basic, usually already included, still worth reading yourself. Liver enzymes, kidney markers, electrolytes, white cell patterns.
Small things that make the results more honest
- Draw thyroid labs in the morning, before you eat.
- If you take biotin (it hides in hair and nail supplements, often at big doses), stop it two to three days before the draw. It can throw off thyroid and several other immunoassays and produce results that look dramatic and are not real.
- Fast 10 to 12 hours for insulin, glucose, and lipids. Water is fine.
- Ferritin goes up with inflammation, so a "normal" ferritin next to a high CRP might be masking a low one. Run them together.
- Don't test in the week you have the flu. You will be chasing ghosts.
- Ask for results to be released to your portal, and save the PDFs. Your own history is data.
The functional tests, and where I land on them
These are the ones people usually mean when they say "functional testing." A comprehensive stool panel, an organic acids test, a hormone panel like the dried urine kits, food sensitivity panels.
Here is my honest take, and it is more cautious than you might expect from someone in my field.
Stool testing can be genuinely useful when there are ongoing digestive symptoms and we want to see what is actually growing in there, whether digestion and absorption are working (things like pancreatic elastase and fecal fat), and whether there is inflammation present (calprotectin). I like it when there is a real question to answer.
Organic acids testing gives a wide, messy, interesting snapshot of metabolism and nutrient function. I use it as a map, not a verdict.
Hormone panels are helpful when the pattern of the day matters, like a cortisol curve for someone who is wired at night and dead at 7am.
Food sensitivity IgG panels are the one I am most skeptical of. They very often come back with a long list of foods you eat regularly, which is close to what you would expect them to do, and I have watched them push people into the shrinking-food-list problem for no good reason. I would rather do a structured elimination and reintroduction, which is free and tells you more.
The general rule: a test should answer a question you already have. If you cannot say out loud what decision the result would change, it is probably not the right test yet.
One of my favorite tests
Way back when I did ALL the tests: organic acids, stool (three times because the lab messed it up TWICE insert crying emoji) , every serum lab that was available, a mycotoxin and heavy metals test… you name it. I mean I got information from these tests, don’t get me wrong.
BUT, I decided to also take a 3x4 Genetics test around the same time and I was shocked with the results. Basically everything those other labs had told me, my genetic report explained about me. “You have a GSTM1-del gene which makes it more difficult for you to detox on your own.” You know what else pointed to a detoxing issue? My mycotoxin and heavy metals test. You know what else it told me? “Your genes require you to have more rest between exercises because you are prone to injury.” Well that made sense after playing my senior year of High School soccer with two torn quad muscles.
It is definitely one of my favorite tests if you are just curious about how to optimize your health and support it where your genes need most. It takes some of the guesswork and out of the picture. I also run these tests for my clients, because I strongly believe in what information they give us.
What testing cannot do
It cannot tell you your story. It cannot tell me that you have been sleeping five hours a night since the baby, or that your symptoms started three months after a course of antibiotics, or that you feel worse every single time you travel.
I have gotten more useful information from a carefully kept two-week food and symptom journal than from plenty of expensive panels. Labs confirm and refine. The story points us where to look.
Something to actually say at your next appointment
Try this, more or less word for word:
"I've been dealing with [fatigue / bloating / hair loss / brain fog] for about [X] months. Could we run a full thyroid panel with free T3, free T4, and TPO antibodies, plus ferritin, vitamin D, B12, fasting insulin, and CRP? And could you send me a copy of the results either way?"
If you get pushback on any of it, that's okay, ask what they would want to run instead and why. That is a fair conversation. Many of these are also available through direct-to-consumer labs for cash if you need to go that route, often for less than people expect (this is where my practice comes in).
And then read the paper yourself. Slowly. You are allowed to.
This is for information only and isn't medical advice. Please work with your doctor on interpreting your labs and on any changes to your care.
