Did you know that 70% of your immune system is in yor gut? If your gut health suffers, your immunity suffers. Learning how to support your gut is your secret weapon against winter bugs. Plus, a healthy hut can improve your energy and your sleep and reduce inflammation so that you have less pain and more mobility too
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Your Gut:
Your Secret Weapon Against Winter Bugs
Hi lovely! Did you know that your gut is your body’s secret winter defender? Over 70% of your immunity is in your gut lining and microbiome — but cold weather, comfort food and stress can throw it off balance fast. But if your gut is unhappy, your whole defence system suffers.
Why gut health matters in winter:
Did you know your gut is your body’s hidden powerhouse? It’s not just about digestion — your gut controls your immunity, your nervous system, how well you absorb nutrients and even how much energy your cells can make.
How your gut supports immunity:
Your gut wall has a lining with cells tightly stuck together and trillions of good bacteria that form a barrier, stopping harmful bugs from getting into the blood. Good microbes teach your immune cells how to fight, and produce important nutrients that support a healthy immune system and a healthy gut lining stops unwanted things from leaking through. When the good microbes reduce in number, the gut lining is more at risk, and if it gets damaged, that causes inflammation and spaces between the cells of the gut wall lining that allow molecules, bacteria and viruses directly into our bloodstream. When this happens, your immune system is bombarded with things to get rid of and uses lots of energy, leaving us feeling run down.
How it connects to your nervous system:
Our gut and brain talk constantly through the gut-brain axis. A calm gut sends calming signals to your brain, helping you manage stress better. An inflamed gut can trigger anxiety, poor sleep and low mood.
How it helps you digest and absorb nutrients:
Your stomach acid and gut bacteria break food into nutrients your body can actually use. If your gut is out of balance, you can eat well but still feel tired because you’re not absorbing vitamins and minerals properly. Without the correct nutrients, our cells and mitochondria cannot produce enough energy, all cellular functions can become impaired and our immune cells cannot be produced or function optimally.
How it fuels your mitochondria:
Good gut health reduces chronic inflammation, which means your mitochondria — your cells’ energy engines — can work properly. Less inflammation, better nutrient absorption and balanced gut microbes all mean stronger, steadier energy.
With 70% of our immune cells being present in the gut, if our gut is not fully functioning, our immune system will become compromised and our risk of recurrent and/or persistent illnesses and even autoimmune diseases is increased and our ability to speedily fight infection is also reduced, so it could take longer to recover from even a mild illness.
How winter impacts the gut
1️⃣ Heavier comfort foods:
In winter, we often crave heavier, richer foods. These starchier meals and an increase in processed snacks and less fresh veggies and fibre means our good gut bacteria have less to feed on, while the bad ones can thrive. This slows digestion, reduces nutrient absorption and inflames the gut lining.
2️⃣ Indoor life & low sunlight:
In winter, we stay inside more and move less. This means that we have reduced oxygen circulating through our body, our muscles and digestive system feel cold and are more prone to spasming.
3️⃣With less sunlight, we don’t produce enough vitamin D.
Oxygen and vitamin D as well as nutrients absorbed in the gut (such as b vitamins) are essential for our cells to produce energy. Sso with too little of these key nutrients, we feel tired and lethargic. So now, our cells are functioning suboptimally; in contact with more bugs, let through the damaged barrier membranes caused by a dried nose and throat and an inflamed and leaky gut lining; and less able to fight off these extra bugs due to a less functional immune system caused by suboptimal vitamin D levels
4️⃣ Winter stress:
The colder, darker months can increase stress hormones. Cold and Stress tightens our gut and slows digestion. Making it harder to extract nutrients from our food and increases inflammation, so the gut wall becomes leaky, allowing molecules and pathogens into the body. Simultaneously Increasing the load on our immune system and reducing our systems ability to fight due to reduced access to nutrients for immune function and for energy production. Sugar, alcohol and medications can further disrupt the balance — leading to bloating, sluggish digestion and a weaker defence against winter bugs.
How to support your gut this winter:
✅ Feed your good bugs:
Add prebiotic foods like garlic, onion, leeks and asparagus to soups and meals. These feed the beneficial bacteria that strengthen your gut wall, improve nutrient availability and aid immune function.
✅ Eat probiotic-rich foods:
Fermented foods like sauerkraut, kimchi, miso and unsweetened yoghurt add new good bacteria to help balance your microbiome.
✅ Enjoy soothing broths and soups:
Warm, gentle-on-the-gut meals help your digestion rest while providing vitamins, minerals and amino acids that repair your gut lining and provide plenty of nutrients for all our cells to function
✅ Drink warm herbal teas:
Ginger tea calms the stomach and supports circulation. Fennel or peppermint can ease bloating. And teas like hibiscus can boost the immune system and mullein is great for respiratory infections
✅ Mind your stress:
Stress hormones can inflame the gut and slow digestion. Try my daily warm-up and breathwork to keep warm and help your gut to function
So…
This winter, love your gut and it will love you back — keeping your body stronger and your mind clearer.
If you’d like my favourite gut-friendly recipes, my daily warm-up video and a simple gut-support planner, grab my Winter Wellness Kit for just $7.
Interested in further reading?
Book appointment here
(pick Turramurra location; osteopath; select Alexis as practitioner, then choose our special Foot and Posture Assessment)
About Blossoming Me
BlossomingMe offers a fully integrated approach to your wellbeing. Located on Sydney’s Upper North Shore. Sarah is our Cranio-sacral and Remedial Massage Therapist and health and lifestyle coach. She can help relieve those problematic knots, tightness and other specific ailments to promote a healthy recovery. These complementary massage therapies can be combined to suit your needs, and include: craniosacral therapy, shiatsu, acupressure, reiki, remedial, swedish, and body-mind-massage.
Our qualified Osteopath, Alexis, offers a drug free, minimally invasive, “hands on” treatment focusing on the musculoskeletal system with its associated muscles, tendons, ligaments, membranes, bones and joints. Alexis takes a functional approach. This means that she focuses on the way a component (body part, tissue or group of tissues) performs its role, as well as the way the body works, performs and integrates as a whole. Our team can support you to improve your posture and therefore your overall health.