12/11/2025
Your gut isn’t just about digestion — it’s the command centre of your immune system.
Around 70% of immune cells live along the gut wall, constantly communicating with your microbiome. These microbes teach your body when to defend and when to tolerate — the balance between protection and overreaction.
When the gut becomes imbalanced — from stress, antibiotics, less fibre or sunlight — this communication breaks down. The lining can become more permeable (leaky gut), allowing bacterial fragments into the bloodstream. This triggers low-grade inflammation that keeps your immune system on high alert but less precise — leaving you more vulnerable to viruses.
I see this pattern often in clients, especially through winter — increased fatigue, slower recovery, and more infections. Years ago, that was me too: recurring colds, sinus issues, psoriasis flares. Supporting my gut was the turning point — and I’ve never looked back.
Now, each autumn I winter-proof my gut before cold season hits 👇
1️⃣ Feed your microbes (prebiotics)
Stewed apples, leeks, onions, oats, and cooled potatoes feed beneficial bacteria that produce butyrate — a compound that strengthens the gut lining and regulates immune balance.
2️⃣ Top up beneficial strains (probiotics)
I rotate between a liquid probiotic proven to reach the gut alive, and a spore-based blend for microbial diversity.
3️⃣ Support postbiotics
These are the compounds your microbes make — like butyrate and urolithins — that reduce inflammation and boost energy. I use Urolithin A and sodium butyrate, or boost them naturally through fibre and resistant starch.
When your gut is balanced, your immune system can protect you — not overreact.
💛 Comment WINTER-PROOF below and I’ll send you my gut health tips