9 Best Supplements for Immune System Support

• Whole Vitamin C supports immune cell function and helps protect against oxidative stress through its antioxidant activity.

• Vitamin D3 (as Cholecalciferol) helps activate immune defenses, especially monocytes and macrophages, and works best when paired with vitamin K2.

• Selenium (as L-Selenomethionine) and Glutathione (as Setria®) support antioxidant protection, reduce oxidative stress, and help regulate immune responses.

• Folate (as 5-MTHF), Magnesium (as Albion Magnesium Malate), and Zinc (as Albion TRAACS®) support cellular function, DNA synthesis, and proper immune cell activity.

• Colostrum and Glutamine help support gut integrity and immune signaling, reinforcing the connection between digestive health and immune function.

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What Are the Best Supplements for Supporting Your Immune System?

The immune system is our body's remarkable defense mechanism against infections, diseases, and other invaders. Given the myriad of threats our bodies face daily, maintaining a robust immune system is crucial. While a balanced diet, regular exercise, and adequate sleep are foundational, many people are turning to vitamins for immune system enhancement. Which ones truly help?

Here's a deep dive into the most beneficial immune system supplements to incorporate into your daily routine…

1) Vitamin C (Whole)

Often this is the first vitamin people think of when they catch a cold. Vitamin C plays an integral role in immune function. It supports various cellular functions, helps in the production of white blood cells, and acts as an antioxidant, protecting the body against free radicals. We recommend whole vitamin C versus standard citric acid which is only a part of the whole vitamin C.

2) Vitamin D (as Cholecalciferol)

Termed the "sunshine vitamin" because it's produced when our skin is exposed to sunlight, vitamin D strengthens the pathogen-fighting abilities of monocytes and macrophages—essential cells for immune defense. A deficiency in this vitamin can compromise immune function. Vitamin D is the most important fat-soluble vitamin for supporting the immune system. Which version should you look for? Cholecalciferol is the natural form of vitamin D3 that is produced in the skin when exposed to the sun. It helps the body absorb calcium and phosphorus. Note that vitamin D must be paired with vitamin K2 for appropriate metabolization.

3) Selenium (as L-Seleniomethionine)

This mineral aids in lowering oxidative stress in the body, reducing inflammation, and enhancing immunity. Foods such as broccoli, sardines, and garlic are rich in selenium. Selenium supports a healthy immune system, reduces DNA damage, and helps with the aging process. L-Selenomethionine is broken into methionine (an essential amino acid) and selenium (an anti-oxidant). Selenium is essential for the protection of various tissues from the damages of lipid peroxidation. Choose a safe, effective form of selenium that is readily bioavailable, such as L-Seleniomethionine.

4) Glutathione (as Setria®)

Glutathione is a master antioxidant in the body. It’s consumption may support Nitric Oxide (NO) production when combined with L-citrulline. Glutathione not only aids the immune system, but plays a central role in the proper function of T-cell lymphocytes. For highest efficacy and bioavailability, look for the tripeptide form of glutathione that has been clinically shown to raise blood glutathione levels, such as Glutathione as Setria®.

5) Colostrum

Colostrum is the milk-like fluid produced in mammals from the mother’s mammary glands shortly after giving birth. Colostrum supports multiple functions, including healthy immune systems, intestinal walls, and a decrease in intestinal permeability. Further, immune support originates with naturally occurring proline-rich polypeptides, immunoglobulins, cytokines, enzymes, vitamins and minerals. Given the nature of this ingredient, Tennant Products only sources it on the first-milking year-round from large dairy farms, all USDA Grade A dairies, in California, Arizona, Kansas, New Mexico, Oklahoma, Texas and Wisconsin.

6) Folate (as 5-MTHF)

Folate aids in the maturation of cells and is necessary for DNA and RNA synthesis. Leafy green vegetables, and beans are rich sources. Natural folate helps remove toxins from the body in the phase two liver detoxification, by making toxins more water soluble. For some, a supplement might be needed, especially pregnant women, to ensure adequate intake. It is a better choice than Folic Acid which 40% of the population cannot process. Also, synthetic Folic Acid can prevent the production of neurotransmitters such as the feel-good hormone serotonin, which can promote psychological issues such as depression. Synthetic folic acid can be found in foods such as cereals, and is not easily cleared out of the body, so be sure to choose a natural Folate as L-5-Methyltetrahydrofolate (5-MTHF).

7) Magnesium (as Albion Magnesium Malate)

Magnesium is a crucial macro mineral involved in over 300 physiological processes. It is essential to body structure and healthy function. Albion’s magnesium is chelated, or bound to amino acids, so it is passed intact through the digestive tract up to the optimal point of absorption. Chelated magnesium is protected, and has fewer interactions with other nutrients.

8) Zinc (as Albion TRAACS®)

Zinc is vital for the development of immune cells and cellular response. Even a slight deficiency can impair immune function. Foods sch as beans, nuts, meat, and seafood are rich in zinc, but supplements can ensure consistent, adequate intake. There are so many cheap versions of Zinc in the marketplace; which one should you look for? Tennant Products recommends Zinc as Albion TRAACS® Chelate.

9) Glutamine

Glutamine is an important amino acid with many functions in the body. It is a building block of protein and a critical part of the immune system. What's more, glutamine has a special role in intestinal health. Your body naturally produces this amino acid, and it is also found in many plant and animal proteins, such as beef, pork, poultry, milk, yogurt, ricotta cheese, cottage cheese, raw spinach, raw parsley, and cabbage.

How Do These Supplements Work Together to Support Immunity?

All of the natural supplements mentioned above are available in Dr. Tennant’s® Restore.

Navigating the world of vitamins for immune system enhancement can be challenging, but armed with the right knowledge, you can make choices that genuinely fortify your health. It's always essential to remember that while supplements can complement a diet, they should not replace whole, nutritious foods. Moreover, always consult a healthcare professional before introducing new supplements to ensure they're right for you.

With the right nutrients in your arsenal, you can confidently face each day, knowing your body is well-equipped to handle whatever comes your way!