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Top Supplements for Immune Support

Stay Healthy during the Holidays and All Year Long


When it comes to keeping your immune system in tip-top shape, a little proactive care goes a long way. Alongside a healthy diet, regular exercise, and stress management, high-quality supplements can provide that extra boost your body craves. As a naturopathic doctor, I’m picky about what I recommend—no fluff, no fillers, just the good stuff. That’s why I love using Fullscript to offer my patients (and you!) professional-grade supplements.


What's in this article?


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Let’s dive into my top immune-supporting supplements to help you stay ahead of sniffles, sneezes, and sluggish days:


Vitamin D3 + K2


You’ve probably heard that vitamin D is the “sunshine vitamin,” but did you know it’s a must-have for immune health? Low levels of vitamin D are linked to higher susceptibility to colds and flu. Pairing D3 with K2 enhances absorption and ensures your calcium levels stay balanced.


My Pick: Vitamin D + K2 by Seeking Health - A clean and effective combo that’s easy to incorporate into your daily routine.


Vitamin C


Vitamin C is the OG of immune support, offering antioxidant protection and boosting your immune response. The effervescent format of C+BioFizz makes it fun and easy to take.


My Pick: C+BioFizz Effervescent Powder by Designs for Health - Delicious, fizzy, and highly absorbable—perfect for sipping on the go.


Probiotics


A healthy gut equals a strong immune system! MegaSporeBiotic supports a balanced microbiome, where the majority of your immune system resides. It’s a spore-based probiotic designed for resilience.


My Pick: MegaSporeBiotic by Microbiome Labs - Clinically tested and incredibly effective for gut and immune health.


Omega-3 Fatty Acids


Omega-3 fatty acids are essential for overall health, including a robust immune system. They also help manage inflammation, which is key for staying healthy year-round.


My Pick: ProOmega 2000 by Nordic Naturals - Ultra-concentrated and made with sustainably sourced fish oils, ensuring top-notch quality.


Elderberry Tea


Elderberry is a superstar for immune support, packed with antioxidants to combat colds and flu. Elderberry tea is a cozy and delicious way to incorporate this powerhouse into your daily routine.


My Pick: Elderberry Tea by Buddha Teas - Organic, caffeine-free, and bursting with immune-supporting benefits.


NAC 500mg


N-acetyl cysteine (NAC) supports respiratory health and acts as a precursor to glutathione, one of the body’s most powerful antioxidants. It’s a must-have during cold and flu season.


My Pick: NAC 500mg by Seeking Health - High-quality, bioavailable, and effective for overall immune resilience.



When it comes to supplements, quality matters. Fullscript offers practitioner-grade products you can trust, with zero shady fillers or low-quality ingredients. Plus, ordering through my Fullscript store ensures you’re getting the real deal at competitive prices.


Start Supporting Your Immune Health Today


Ready to stock up on these immune powerhouses? You can find all my top picks (and more!) through my Fullscript store. Remember, supplements are just one piece of the puzzle. Prioritize good nutrition, restful sleep, and stress management for the ultimate immune health trifecta.


Let’s crush this year with vibrant health and unstoppable energy.



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My goal is to empower you to make your lifestyle your medicine, so I encourage you to take the first step by scheduling an appointment with me. However, if you are not in the space to make an appointment with me, I encourage you to explore my health articles and e-books. Also, be sure to sign up for my newsletter to get my naturopathic tips straight to your inbox.

*Dr. Francesca works only with patients physically located in California.*

*Disclaimer: Although I am a doctor, I may not be your doctor. The information contained within the pages of this site is for educational purposes only and should not be used to treat conditions. Please consult with your doctor before implementing any of the treatments, diets, supplements, etc. mentioned in this blog.*


Just a heads-up: some of the links on this website are affiliate links. That means if you click and purchase, I might earn a small commission (think: a small black coffee!) and it’s at no extra cost to you. This small commission helps me provide free content for you to consume and share with your friends and families. Your support, in every way possible, truly means the world to me. For all the details, check out my Affiliate Disclosure.



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