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Boost Your Immunity: Easily, Quickly, Comprehensively

Hi I’m Dr. Jeffrey Mark and I’d like to share with you how you can support your immune system that’s easy, fast, and comprehensive.

Did you know that as you go about your day under the surface, your immune system is constantly at work, even when you're resting, it's on the clock, protecting you from potentially harmful threats and keeping your health in balance. But sometimes, your immune system is confronted with a large scale invasion of unfriendly visitors, and it has to gear up and work extra hard to face this challenge, as the situation progresses, your energy and focus can become collateral damage your life doesn't always allow for days off. Fortunately, you can support your immune system as it faces these challenges, consuming immune enhancing nutrients and botanicals can support your body's immune response. When you need an immune supporting supplement, it's important to choose a formula that's both comprehensive, and provides fast acting immune support, AFH ImmuneDefense is a synergistic formula that works to boost immune function by supporting antibody response and immune cell activity, modulating antioxidant levels and maintaining normal inflammatory balance. The powerful botanical blend includes elderberry, astragalus, Echinacea, and Andrographis which work together to provide your immune system the right kind of boost. Reinforce your immune system when it needs it most. Choose ImmuneDefense for fast acting immediate immune support.

To obtain AFH Immunedefense you can click on this link.

If you would like to learn more about AFH  anti-aging and regenerative medicine programs including our course on optimizing your immunity, or participate in other brain cognitive medicine programs, contact us at, find us at to schedule an appointment, or call (925) 736-9828.  


We’ve helped thousands of people on their health journey and look forward to helping you. Take care and stay healthy.


Jeffrey Mark, M.D.



P.S. Find AFH supplement links here: ImmuneDefense,  Probio PlusProBio 100ProBio 30 SBPomBioX, and ProBio Phyto (Rainbow)


Our office location in San Ramon is a short drive to the Silicon Valley including Palo Alto, Menlo Park, Atherton, Portola Valley, Los Altos, Los Altos Hills, San Jose, Cupertino, Mountain View, Burlingame, Hillsborough, San Mateo, San Francisco, Piedmont, Berkeley, Walnut Creek, Danville, Pleasanton, and surrounding areas. Telemedicine/Telehealth services are now available in the comfort of your home so no need to drive across the bay anymore to access your Quadruple Board Certified physician.   We are able to service all 50 states and send test kits and nutraceuticals directly to your home. Call us to find out more about our many services.  925-736-9828



Jeffrey Mark, M.D. Helping clients with compassionate and comprehensive medical care for over 25 years with 4 board certifications in functional medicine, gastroenterology, internal medicine, and anti-aging/ regenerative medicine . IFMCP, ABIM Gastroenterology, NPAS Internal Medicine, ABAARM.

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