10/09/2025
☀️ Did you know 80% of our vitamin D comes from sunlight?
With shorter days, more time indoors, or living further from the equator, it’s no wonder vitamin D deficiency is so common.
And it matters because vitamin D receptors are found in nearly every tissue of the body, including the ovaries, endometrium, fallopian tubes… and even our gut.
✨ Vitamin D + Your Gut Microbiome
Here’s the fascinating part: while vitamin D supports bone, muscle, fertility, and immune health, your gut microbiome helps determine how effectively you can activate and use it.
In turn, vitamin D helps regulate microbial balance, gut barrier integrity, and the production of natural antimicrobials that keep your immune system in check.
🔬 Science highlights:
🌱Females deficient in vitamin D have 26% lower chance of live birth via IVF/ICSI.
🌱In men, vitamin D levels correlate with testosterone, s***m quality, and motility.
🌱67–85% of women with PCOS have low vitamin D.
🌱Among sub-fertile women, up to 91% present with deficiency.
🌿 It’s a two-way street: vitamin D supports your gut, and your gut microbiome supports your vitamin D. Together, they influence fertility, immunity, and whole-body health.
👉 Getting your levels checked before conception (or IVF) is one of the most science-backed steps you can take.
How’s your vitamin D status? Do you have a gut–hormone plan in place to optimise it?
We are here to help you implement the evidenced based steps to optimise your preconception health 💕