Fall and winter bring more time indoors and more contact with seasonal bugs, and a balanced immune response depends on having the right nutrients on board. Immune Resilience Support gathers the nutrients that are most studied for supporting healthy immune signaling and barrier defenses.
Creating a Fullscript account is free, and you can look through every product before you decide anything.
The mechanisms this protocol supports
Your immune system starts at the barriers, especially the lining of the airways and the gut, where immune cells constantly sample what comes in. Vitamin D receptors sit on many of those immune cells, and zinc is needed for immune cells to develop and send signals.
Most immune tissue lives in the gut, so the gut microbiome helps train how the immune system responds everywhere else. With age, immune function gradually changes in a process called immunosenescence, and nutrient status becomes even more important.
Research has linked low vitamin D and zinc status with weaker immune defenses, and an individual-participant meta-analysis linked vitamin D supplementation with fewer acute respiratory infections, mostly in people who started out low. This protocol supports those underlying mechanisms and does not replace medical care when you are sick.
What is in the protocol
The exact products and directions are listed in the Fullscript plan, and here is what each one is commonly used to support.
- Vitamin D + K2 Liquid from Thorne provides vitamin D, which immune, muscle and bone cells all rely on, together with vitamin K2, which helps direct calcium into bone.
- Zinc Picolinate from Thorne provides a well-absorbed form of zinc, a mineral needed for immune cell development and signaling.
- Buffered Ascorbic Acid from Pure Encapsulations provides a gentle form of vitamin C, which builds up inside immune cells and supports barrier function.
- Quercetin Phytosome from Thorne provides quercetin, a plant flavonoid that influences inflammatory and immune signaling, in a form designed for better absorption.
- Ther-Biotic Synbiotic from Klaire Labs is a multi-strain probiotic paired with a prebiotic, and reviews of probiotic trials have linked them with fewer and shorter upper respiratory infections.
Related protocols you may find helpful include Gut Barrier & Microbiome and Sleep & Overnight Repair.
How to use it thoughtfully
- Please talk with your provider before starting, especially if you take medications, are pregnant or nursing, or have a health condition.
- This page does not list amounts, so follow the label or the specific guidance your provider gives you.
- When you can, add one product at a time so it is easier to notice how you feel.
- Sleep, nourishing food, daily movement and stress care are the foundation, and supplements are meant to build on them.
- Zinc used for long periods can lower copper levels, so check with your provider about how long to use it.
- Vitamin K2 can interact with warfarin, so please check with your prescriber before starting if you take a blood thinner.
- Quercetin may interact with some medications that are cleared by the liver, so mention it to your prescriber or pharmacist.
- High fever, trouble breathing or symptoms that keep getting worse need prompt medical care.
Frequently asked questions
Why does vitamin D matter for immune health?
Many immune cells carry vitamin D receptors, and research has linked low vitamin D status with weaker immune defenses, especially during the darker months.
Why is a probiotic part of an immune protocol?
Most immune tissue sits in the gut, and the gut microbiome helps train how the immune system responds throughout the body.
Do I need an appointment to order these products?
No, you can create a free Fullscript account and order directly, although I always recommend checking with your own provider first, and a free 15-minute consult is available if you would like to talk it through.
Ready to see the full protocol?
Every product I use for this protocol is waiting for you in my Fullscript dispensary.
Not sure this is the right fit for you? Book a free 15-minute consult and we can talk it through together.
Educational purposes only. This page shares general information and is not medical advice. These statements have not been evaluated by the Food and Drug Administration, and these products are not intended to replace care from your own healthcare provider. Please talk with your provider before starting any supplement, especially if you take medications, are pregnant or nursing, or have a health condition.
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