The Immune System is a network of cells, tissues, and organs that defend the body against foreign invaders, viruses, infections, and other disease. Always remember there are no fences in your body.


There is a very strong connection between the Lymphatic system and the digestive system.

It is so critical to have a healthy digestive system as over 60% of lymphatic system interwoven with your gut. So, I always teach if you are struggling with a weaken immune, start with improving your gut health.


Sometimes the immune system becomes overactive and targets the body’s healthy cells, tissues, and even organs rather than viruses and infections. Basically, your body fails to see the difference between self and non-self. This condition is called autoimmune disease. Leaky gut syndrome is a condition in which the tight cellular junctions inside the small intestines become inflamed and loose or weakened allowing passage of unwanted substances, like gluten and certain proteins from dairy leak, through the walls of the intestine and into the bloodstream. This is now being heavily researched as a root cause for many autoimmune diseases like Hashimoto’s, thyroiditis, Crohns’s rheumatoid arthritis, psoriasis lupus, and even multiple sclerosis. One of the major reasons for leaky gut: is an overgrowth of harmful gut bacteria known as dysbiosis or small intestinal bacterial overgrowth.  See the Digestive Health page to learn more about Leaky Gut Syndrome.


There are some key nutrients that have been clinically studied to enhance immune function. Below I will share with some of formulas that I personally have used myself and many of my patients with great success.

nutraMetrix Ultra Prime Secretagogue helps increase strength and energy by promoting the normal production of HGH. It serves as a trigger to safely and naturally promote the normal function of the pituitary gland. This formula contains potent amino acids and nutrients that combine in a precise peptide formulation to effectively raise HGH levels.

In an informative book, “Grow Young with HGH”, Dr. Ronald Klatz does an excellent job describing the HGH effect in the body. If you were to purchase all the amino acids Dr. Klatz recommends it would be extremely expensive and difficult to consume. The Ultra Prime Secretagogue has the proper amount of key amino acids to effectively help the body to stimulate the production of human growth hormone. It’s highly effective and less expensive than HGH injections which have not yet been studied for long term side effects.

Bone and joint health are major complaints in aging adults. To keep moving smoothly, nutraMetrix Prime™ Joint Support Formula by Isotonix® is uniquely formulated with glucosamine, Pycnogenol® and hyaluronic acid to support relief from temporary inflammation associated with the normal aging process. It is the only product on the market delivering these crucial joint relief ingredients in an isotonic form, meaning you receive the benefit quickly and efficiently. Many orthopedic physicians across the country are now reporting great results using this isotonic formulation.

nutraMetrix Prime™ Ultimate Longevity Formula by Isotonix®

As aging occurs, the body’s ability to build and retain muscle tissue is reduced. The result is weakness and frailty. Research has shown that supplementation with branched chain amino acids, BCAA’s, promotes muscle retention in older adults. Additionally, it has been shown that supplementation of BCAA during exercise supports muscle protein synthesis and inhibits protein catabolism (breakdown) and muscle fatigue. Studies indicate that BCAA’s improve mental concentration and reduce and delay mental decline. The BCAA’s in nutraMetrix Prime Ultimate Longevity Formula by Isotonix have been instantized, meaning they are developed through a unique production technology that allows for quicker dissolution in water and better bioavailability. Another key ingredient in this formula is huperzine A, which has been studied to helps improve and enhance memory and cognitive function.

A 100 mg of grape seed extract is the third ingredient in this formula. This potent antioxidant is beneficial in reducing pain and inflammation. Studies suggest that supplementing with grape seed extract can promote normal circulation. High in oligomeric proanthocyanidins (OPC’s), grape seed extract has been shown to decrease and prevent the formation of free radicals, which promotes cardiovascular health. OPC’s are also proven to promote healthy connective tissue and joint lubricant. As we age staying active is the key to good health and longevity.

The nutraMetrix Prime Advantage Anti-Aging Kit covers it all. Special pricing on this kit gives a savings of more than 48% compared to purchasing these products separately. This is a significant savings on a potent anti-aging protocol.

Dr. Sheryl Recommends These Natural Supplements For Immune Health

“I have suffered with a weakened immune system most of my life catching multiple rounds of flu’s and colds each year. I added the nutraMetrix Immune defense formula to my nutritional supplement program and what a difference it has made. I can actually feel my immune system being stronger. I fly quite often, and I used to always catch a virus after my trips. Since adding the Immune formula I feel much stronger and I am not afraid to fly. What a huge difference it has made!”
Carol Sawyer
nutraMetrix® Isotonix® Immune

The ingredient in Isotonix® Immune is a natural yeast beta glucan derived from a proprietary strain of yeast, Saccharomyces cerevisiae. Clinical studies have shown that Wellmune® promotes a healthy immune system.


Wellmune® contains biologically active polysaccharides, most known as beta-glucans, that increase host immune defense by activating macrophage activity. Macrophages are phagocytes. Their role is to phagocytose, or engulf and then digest, cellular debris and pathogens. Do you remember the video game called PAC-MAN? Think of macrophages as little PAC-MEN who eat and destroy foreign invaders like viruses and bacteria.


The molecular structure of Wellmune® WGP, with its beta 1, 3/1, 6 branch points, is responsible for its unique biological activity. Wellmune® works to support immune cells, which are part of the body’s natural defenses. This patented formula also contains vitamin C and Zinc to help supports the immune system.


Dr. Sheryl has personally experienced great results using this formula to keep her own immune system healthy, especially when traveling and during flu and cold season.

Purchase Now
Supports a healthy immune system/function, even when under stress
Clinically shown to promote a healthy immune system/response
Helps maintain normal blood flow and pressure levels
Supports immune function while dealing with physical and emotional stress
Promotes beneficial activity of macrophages, T cells, and natural killer cells
Promotes healthy energy levels and vitality
Provides strong antioxidant protection
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nutraMetrix Isotonix® Vitamin D with K2

Vitamin D is actually a hormone.  Research has found that vitamin D influences over 200 genes highlighting links to disease. Numerous studies show low levels can lead to serious potential health risk including:

  • Depression
  • High blood pressure
  • Coronary heart disease
  • Muscle weakness
  • Abnormal blood sugar levels
  • Respiratory issues (asthma and sinus congestion)
  • Type 1 and type 2 diabetes
  • Bone loss, hair loss
  • Osteoporosis
  • Rickets
  • Higher risk for development of cancer
  • Auto-immunes diseases (Crohn’s, MS, rheumatoid arthritis)

To learn more, I encourage you to watch 'The Dangers of Low Levels of Vitamin D'.


Vitamin D plays a huge roll with your immune system. Lack of Vitamin D causes cytotoxic T Cells to fail at fighting infection.  T Cells need vitamin D to become active.  Vitamin D boosts the ability of macrophages to kill viruses, bacteria. Vitamin D also plays an important role in bone health, heart health and immune support, while working with vitamin K to support normal absorption of calcium and promote healthy arteries.


Archives of Internal Medicine Reveal three-quarters of the U.S. Population is deficient in Vitamin D. I feel everyone should have their vitamin D levels checked each year and strive reach adequate blood levels of Vitamin D3 (50-70 ng/ml). Naturopaths and integrative practitioners consider the therapeutic range of 70-100 ng/ml to be the optimum level.


I highly recommend the nutraMetrix Isotonix Vitamin D® with K2 because it contains 5000 IU’s of vitamin D3 (the metabolically active form of vitamin D) along with 45 mcg of vitamin K2 (a form of vitamin K which supports vascular health and calcium utilization).


nutraMetrix Isotonix® Vitamin D is the first of its kind to deliver both of these powerful vitamins with isotonic delivery.

Purchase Now
Supports a strong immune system
Boosts ability of macrophages to kill viruses, bacteria
Promotes elasticity of blood vessels
Helps maintain bone density/mass and structure 
Helps maintain normal blood pressure
Promotes synthesis and functioning of important proteins essential for the proper utilization of calcium
Promotes healthy arteries and vascular system
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Recommended Complementary Products For Immune Health

nutraMetrix® Curcumin Extreme™
As a Naturopath, Dr. Sheryl teaches the connection between the lymphatic system and detoxification of the liver. In order to treat an unhealthy immune system, you first must look at the cleansing and support of healthy liver function.

Curcumin supports the normal production of Phase II liver detoxification enzymes, including glutathione synthase, heme-oxygenase and catalase. The liver plays several roles in detoxification: it filters the blood to remove large toxins, synthesizes and secretes bile full of cholesterol and other fat-soluble toxins, and enzymatically disassembles unwanted chemicals. This enzymatic process usually occurs in two steps referred to as phase I and phase II. They promote the body’s natural enzyme antioxidant defense systems and function as a powerful indirect antioxidant. These enzymes promote the body’s normal metabolism of harmful chemicals such as heavy metals, toxins and pollutants into less reactive molecules. Curcumin has also been shown to promote normal hepatic tissue repair. There are many curcumin products on the market, but nutraMetrix Curcumin Extreme with BCM-95® has superior bioavailability and absorption 7 times stronger than just curcumin alone.
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Supports overall liver health and detoxification
Helps maintain overall cell cycle activity and integrity
Promotes normal activity of NF-kappaB
Supports healthy gastrointestinal immune functions
Supports a healthy digestive tract
Promotes neurological health
nutraMetrix® Ultimate Aloe®
Clinical studies have shown that aloe stimulates microphage activity, increasing the white blood cells to attach to bacteria and viruses thus boosting the immune system.
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Combats free radicals
Demonstrates anti-inflammatory activity
Helps maintain healthy cholesterol and blood glucose levels
Promotes sinus comfort
Supports a healthy digestive tract and strong immune system
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Dr. Sheryl Duchess , N.D., M.H., Certified Naturopathic Doctor, Certified Master Herbalist, Public Speaker, Educator

Dr.Sheryl is certified naturopathic doctor who is dedicated to educating and helping people find a more natural approach to wellness. She explains the root cause of disease and shares the secrets of a naturopath through her wellness course, videos, and mentoring opportunities.

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