01/31/2026
Why does vitamin D work for some people… but not others?
If vitamin D were as simple as “take more,”
your labs would already look better.
Vitamin D isn’t just a vitamin.
It regulates 200+ genes involved in immunity, mood, muscle function, and inflammation.
And here’s the part most women never hear:
Not everyone processes vitamin D the same way.
I’ve had clients (and myself) take vitamin D faithfully for years…
with zero movement in labs.
Until the right change was made.
Some bodies do better with:
Small daily doses
Others with:
Larger weekly doses
Some absorb one brand beautifully…
and barely register another.
I personally switched brands — same dose — and my labs finally moved.
That’s not random.
That’s biology.
Your genes influence:
• Absorption
• Transport
• Utilization
Which means:
👉 Dose, timing, and brand all matter
👉 Labs should guide adjustments — not guesses
If your vitamin D hasn’t budged, there’s a reason.
Comment Guide and I’ll share my guide.