Your doctor says “normal.”
You still feel terrible.
Brain fog. Fatigue. Weight gain. Low libido. Poor sleep. You get your labs done and your doctor says everything looks fine. But you know something is off.
Here’s the problem: “normal” lab reference ranges are based on population averages — not on what’s optimal for health and function. A “normal” fasting insulin of 20 might not trigger a flag on your lab report, but it’s a metabolic red flag. A “normal” TSH of 4.5 might technically be in range, but it can leave you dragging through your days.
I created this guide because my patients kept asking the same question: “What should my labs actually be?” This is my answer — the targets I use in my own clinics, based on current literature, not outdated reference ranges.
Optimal isn’t the same as “normal.” This guide gives you the ranges associated with the lowest disease risk and best long-term function — so you can walk into your next appointment knowing exactly what to ask for.
Good to know: These are standard blood tests that any major lab can run and any doctor can order. You can also order most of these labs yourself through direct-to-consumer lab services without a doctor’s order. Most are covered by insurance. If you’re in Texas or Florida, you can get them as part of your Advanced Health Check through Humanaut Health.
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