Did you know? Around 70% of your immune system lives in your gut?
That includes 80% of the body’s IgA-producing immune cells, which help fight off pathogens and keep your internal ecosystem in check.
So, when your gut isn’t thriving (whether it’s due to stress, lack of fibre, poor food diversity, antibiotics, or hormonal changes) it can have a ripple effect on your immune system too.
Because winter is the season when our immunity often takes a hit. We spend more time indoors, eat fewer fresh foods, and face a revolving door of viruses (hello, daycare bugs and office colds). That sluggish, foggy, always-a-bit-under-the-weather feeling? Your gut might be playing a bigger role than you realise.
The connection between immunity and the gut is fascinating and complex. Conditions like celiac disease (something I personally navigate every day) show just how deep this link runs. In autoimmune conditions, the immune system starts attacking its own tissues.
Even if you don’t have a diagnosed autoimmune condition, a disrupted gut can quietly influence inflammation, nutrient absorption, and your body’s ability to defend itself against invaders.
Antibiotics can be life-saving, no doubt. But they don’t just target the bad guys – they often wipe out beneficial bacteria too, which leaves your gut vulnerable and your immune system on the back foot.
If you’ve recently had a course (or a few), you might notice you’re picking up every cold going around. That’s your gut saying, “Help me rebuild.”
I’m not here to offer quick fixes or ‘immunity hacks’. The truth is, immunity isn’t something you can boost overnight. It’s more like a garden and it needs regular care, the right nourishment, and time.
A strong immune system starts with a nourished gut.
These nutrients don’t work in isolation. They rely on a thriving gut microbiome to be absorbed and used effectively. That’s why diet diversity, fibre-rich foods, and fermented goodies are your winter wellness allies.
If you’re unsure where your gut stands or if you’re feeling run down, now’s the perfect time to check in.
I’m offering Mini Immune Consults for just $50 this season.
In just 20 minutes, we’ll explore your current health picture and I’ll create 2 personalised recipes just for you – designed to support both your gut and immune system.
No fluff. No overwhelm. Just real food, real insight, and a real plan.
Let’s rewrite your winter story – starting with your gut.
Book your Mini Immune Consult and feel the difference even small changes can make.
Because you don’t have to feel ‘meh’ all winter. And your immune system deserves more than a lemon water “boost.”
Nuala is a Registered Nutritionist under ANTA in Australia and with the UK’s Association for Nutrition. The clinic is located in at Akasha Integrated Health (Manly) in Sydney’s Northern Beaches in Australia.
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