Free Sample Interpretation

What Does Your TSH
Actually Mean?

Your lab says "normal." But you don't feel normal. Here's what a TSH of 4.8 really tells us — in Andra's own words.

This is a sample using an anonymized TSH value. Your actual interpretation will cover your full panel.

Sample Lab ResultAnonymized Example
Marker
TSH
Thyroid Stimulating Hormone
Your Value
4.8
mIU/L
Lab Range
0.5 – 5.0
✓ "Normal"
⚠ Not optimal
Lab Range vs. Optimal Range
TSH 4.8 is technically "normal" (lab range 0.5–5.0) but above the functional optimal of 1.0–2.5. This distinction changes everything.
What You Might Be Feeling
Fatigue, hair thinning, cold intolerance, brain fog, slow digestion, weight resistance, low mood. Your symptoms are real — and connected.
What to Ask Your Doctor
Request Free T3, Free T4, Reverse T3 (RT3), TPO antibodies, and TgAb. TSH alone is dangerously incomplete — these markers reveal the full thyroid picture.
The RT3 Test Most Doctors Skip
Reverse T3 (RT3) is the "stop" signal that blocks active thyroid hormone. Your Free T3 can look high — but if RT3 is also high, your thyroid is actually shut down at the cell level. This is what happened to me personally, and my thyroid was at coma levels. Always ask for RT3.
Actionable Next Steps
2 Brazil nuts daily for selenium. Cook cruciferous vegetables. Reduce stress (cortisol suppresses thyroid). Optimize sleep and iron levels.
AA
Andra Annette, RN, CN
Registered Nurse · Certified Nutritionist · 40 Years Clinical Experience

Let me walk you through this TSH result together.

Your TSH is 4.8. Now, most labs will tell you that's "normal" — and technically, it falls within the standard reference range of 0.5 to 5.0. But here's what I want you to understand: that range was set based on population averages, not on what makes people feel their best.

In functional medicine, we look for TSH between 1.0 and 2.5 for optimal thyroid function. A TSH of 4.8 tells me your pituitary gland is working overtime — it's sending out more and more signal, essentially shouting at your thyroid to produce more hormone. That's a sign your thyroid may be struggling.

What does this feel like in your body? You might be experiencing fatigue that doesn't improve with sleep. Hair thinning or shedding more than usual. Feeling cold when others are comfortable. Brain fog, slow digestion, weight that won't budge no matter what you do. Morning stiffness. Low mood.

Here's what I want you to do with this information. First, ask your doctor to also run Free T3, Free T4, and thyroid antibodies — TPO and TgAb. TSH alone doesn't give us the full picture. Second, look at your selenium and iodine intake — both are critical for thyroid hormone production. Brazil nuts, two per day, are a beautiful source of selenium. Third, reduce your intake of raw cruciferous vegetables like raw kale and raw broccoli — cooking them deactivates the compounds that can interfere with thyroid function.

This is just one marker. But this is exactly what we do together inside Read Your Body — we look at your full panel, connect every number to what you're feeling in your body, and give you a real roadmap. Not just a printout that says "normal." A real conversation about what your body is telling you.

You deserve to understand your own labs. Let's read them together.

Ready to Understand Your Full Panel?

This was just one marker. Inside Read Your Body, Andra interprets your entire lab report — thyroid, metabolic, cardiovascular, hormones, gut, and more — and gives you a complete roadmap in her own voice.

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