Meet the Immune Defenders: Prevention Essentials

updated on 09/09/2025

New York weather has been keeping us on our toes — one day calls for sweaters, the next still feels like summer. But no matter how the temperature swings, one thing is clear: Fall has officially arrived. With kids back in school, professionals returning from vacation mode, and our schedules filling quickly, many of us are feeling that familiar seasonal shift. And with it comes more exposure to the kinds of bugs that can disrupt your flow.

This is exactly why Dr. Morrison created the Immune Defenders protocol. For more than a decade, he’s refined this combination of seven targeted supplements and has watched countless TMC patients sail through Fall and Winter with fewer sick days, faster bounce-backs, and more energy when it matters most. It’s one of the most consistently effective and loved protocols we recommend, and the results speak for themselves.

We’re excited to share our updated guide to these seven preventative Immune Defenders—because the best defense is always a smart, proactive start. If you’ve ever wondered what makes the biggest difference for staying strong when everyone around you seems to be catching something, this is it.

Core Immune Defenders: Essential Daily Protection

These supplements provide the foundational support needed to optimize your immune system. Start taking them daily for ongoing protection during the fall and winter months.

• Buffered Vitamin C (1 capsule, 2x/day)
  A potent antioxidant, vitamin C boosts the immune system’s ability to fight infections and helps the nervous system manage stress. Dr. Morrison’s buffered vitamin C is formulated for superior absorption, while being gentle on the digestive system.
• Vitamin D3/K2 (1 capsule, daily)
  During the darker months, supplementing with the sunshine vitamin is vital. Higher blood levels of D3 and K2 enhance immune function and balance inflammation, promoting overall health.
• Reacted Zinc ** (1 capsule, daily with food in the morning)
  Zinc is essential for the production of white blood cells, which help combat viruses and infections. This highly absorbable zinc chelate ensures your body has the zinc reserves it needs throughout the winter.

Specialized Immune Support: Boost Your Defenses

These products offer specialized, research-backed benefits to enhance your body’s ability to resist seasonal illnesses.

• Daily Flora Immune (1 capsule, daily)
  This probiotic blend is specifically designed to support immune health by balancing the gut microbiome. Clinical studies have shown that it reduces the risk of colds and upper respiratory infections by optimizing gut-based immune responses.
• Isoquercetin (1 capsule, 2x/day)
  Isoquercetin is a highly bioavailable form of quercetin, an antioxidant that helps regulate and enhance immune responses. It also increases zinc absorption, ensuring your immune system functions at its best.

Immune Defenders: Prevention with Targeted Herbs

These herbal supplements are effective tools in your daily immune defense routine, providing extra protection when you need it most.

• Bee Propolis (1 dropperful, daily)
  Local bees in the Catskills produce this organic propolis to protect their hives from infections. Dr. Morrison finds that propolis can dramatically reduce the severity of upper respiratory infections when taken at the first sign of a tickle in your throat.
• Echinacea** (1 tablet, daily)
  A traditional herb native to the US Northeast, echinacea has been used for centuries to support the immune system. It’s especially useful for building up immunity as we head into winter.

Get the Prevention Bundle Here 

What to Do When You’re Actually Ill

We’ve covered prevention, but what if you start feeling sick? That’s when you’ll need Immune Defenders – Active Support. In our next blog, we guide you through the supplements to take and how to use them to boost your recovery when illness strikes. Be sure to check out the second part of this series: Immune Defenders – Active Support!

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease

**These products are available online for TMC patients only. If you are not a TMC patient and interested in learning more about it, please call the TMC office at 212-989-9828.