The Autumn Reset
If you have stepped outside in Melbourne this week, you will have felt it. That unmistakable cool change has swept through, signalling the inevitable shift from summer into autumn. Mornings are getting crisp (which I quite like), evenings are getting darker earlier (which I don't like as much), and many of us are already reaching for an extra layer. I even grabbed a light scarf on my way out the door this morning!
With the change of seasons, and as we head into cooler weather there is a natural opportunity to look inward and ask ourselves "Is my immune system ready?".
The good news is that with a little nutritional and lifestyle support, you can head into autumn and winter feeling resilient and well.
Key Nutrients for Immune Support
The immune system is a finely tuned network that relies on a steady supply of specific nutrients to function at its best. As our food choices and sun exposure behaviours often shift in cooler months, it is worth being intentional about the following:
Vitamin C: A powerful antioxidant that supports the production and function of our immune system's white blood cells. Found in citrus fruits, strawberries, kiwi, capsicum, and broccoli, cauliflower, Brussels sprouts and cabbage.
Vitamin D: Plays a central role in immune regulation. With less sunlight in autumn and winter, and less exposure of skin to sunlight, many Melburnians become deficient. This is not an uncommon deficiency that I see in clinic, and an easy fix with the right form of Vitamin D supplement. Consider testing your levels as you head into the winter months. Ideally, we are looking at an optimal level being at least 100nmol/L (more for those with certain chronic health conditions).
Zinc: Essential for immune cell development. It has antioxidant and anti-inflammatory properties. Found in red meat, shellfish, dairy products, eggs, legumes, nuts, seeds (particularly pumpkin seeds), vegetables (capsicum, broccoli and ginger), and wholegrains.
Vitamin A: Supports the integrity of mucosal linings found in the gut and respiratory tract, which form a part of our first line of defence against illness. Also important for immune proteins and white blood cells. Found in liver, eggs, full cream milk and dairy products, sweet potato, pumpkin, carrots, and leafy greens.
Iron: Required for normal immune cell activity. Low iron is surprisingly common and can leave you feeling run down and more susceptible to infections. Consider testing your iron levels. If a supplement is needed, this is where having one prescribed by a Clinical Nutritionist can really help as not all iron supplements are created equal. Sources of iron include red meat, fish, eggs, legumes, tofu, green vegetables and potatoes. Bonus tip: pair your iron-rich food with a source of Vitamin C to enhance its absorption.
Probiotics and Prebiotics: Around 70-80% of our immune cells live in the gut. Keeping your gut healthy and happy will go a long way to support your immune system throughout the cooler months. Fermented foods such as yoghurt, kefir, kombucha, sauerkraut, kimchi, miso and natto, when eaten alongside fibre-rich plant foods (to feed the beneficial bacteria residing in your gut), may help to keep the gut microbiome balanced.
Lifestyle Habits to Support the Immune System
Nutrition is only one piece of the puzzle. These everyday lifestyle habits can be very powerful, when combined with nutritional strategies, in supporting your immune system health:
Prioritise Sleep: Most immune repair and regeneration happens during deep sleep. Aim for at least 7 to 9 hours per night, and try to keep consistent sleep and wake times.
Manage Stress: I completely understand that this is often easier said than done in the world today, however chronic stress elevates cortisol, and when left unchecked can suppress immune function over time. Regular mindfulness, breathwork, or simply taking some time out and spending time in nature can help to regulate your stress response. Find what works for you and aim to build it into your week. Even starting with 5 minutes of mindfulness or breathwork once a week and building up from there can do wonders.
Stay Active: Moderate, regular movement supports your immune system to function optimally. Do not underestimate the power of walking. A 30-minute walk through your local park absolutely counts. Avoid overtraining, which can be counterproductive. Excessive exercise is a stress on the body, which can elevate cortisol levels and reduce the body's ability to mount an effective immune response.
Stay Hydrated: It is easy to forget water intake when we are not as warm or not sweating as much. Proper hydration supports lymphatic function and helps flush out pathogens. In cooler months, you might like to swap out filtered water for herbal teas.
Limit Alcohol and Ultra-Processed Foods: Both of these can disrupt the gut microbiome, impair nutrient absorption, and dampen immune responses. Occasionally is fine, but patterns matter. Over time, it is the everyday habits that shape how well your gut and your immune system can do their job when the cooler months roll around.
Small, consistent choices will compound over time. You do not need to overhaul everything at once. You might like to pick one or two areas to focus on this week and build from there.
Are you looking for some personalised support with your immune system over the cooler months?
Did you know that acute Telehealth consultations are available with Katie?
If you are feeling run down, have been unwell frequently, are taking longer to bounce back from a common cold, or simply want a targeted plan heading into winter, acute consultations are available to help you get on top of things quickly.
These shorter, focused appointments are designed to assess your current immune health, identify any nutritional gaps, and provide practical, evidence-based recommendations tailored to you. This may include practitioner-only supplements that will support your immune system to get back on track.
Reach out today to book your appointment.
Katie practices at: Uprise Health, 136 Lennox Street, Richmond, 3121, Victoria.
Appointments: Face-to-face and Telehealth available (Australia wide)
Contact: admin@katiehopcraft.com.au
If you have any questions or need personalised guidance, feel free to reach out.
The information provided in this blog is for your personal or other non-commercial, educational purposes. It should not be considered as medical or professional advice. We recommend you consult with a GP or other healthcare professional before taking or omitting to take any action based on this blog. While the author uses best endeavours to provide accurate and true content, the author makes no guarantees or promises and assumes no liability regarding the accuracy, reliability or completeness of the information presented. The information, opinions, and recommendations presented in this blog are for general information only and any reliance on the information provided in this blog is done at your own risk.