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Supplements · September 1, 2026 · 2 min

Spartis Immune Complex: Quercetin, Zinc & Vitamin Support

Learn about the Spartis Immune Complex formula with quercetin, zinc picolinate, vitamin C, bromelain, and vitamin D3.

Kurt Bravata, M.D. · Educational, not a substitute for your physician.

The immune system requires specific micronutrients to function properly. Zinc, vitamin C, and vitamin D3 are among the most well-studied immune-supporting nutrients. Quercetin and bromelain are among the most promising natural compounds for supporting their function.

Spartis Immune Complex brings these five ingredients together in a single, well-formulated capsule.

What's in Spartis Immune Complex?

Spartis Immune Complex is a 120-capsule, U.S.-made formula combining:

Quercetin Dihydrate

Quercetin is a plant flavonoid found in onions, apples, and capers. It has potent antioxidant properties and is often described as a natural zinc ionophore — it may help transport zinc into cells, where zinc performs its immune-regulating functions. The dihydrate form is chosen for its stability and absorption profile.

Zinc Picolinate

Zinc is essential for the development and function of immune cells — T cells, B cells, natural killer cells, and macrophages all depend on it. Zinc picolinate is a chelated form that is well-absorbed and gentle on the stomach.

Vitamin C

Vitamin C stimulates the production and function of white blood cells, protects them from oxidative damage, and supports the skin barrier as a first line of defense.

Bromelain

Bromelain is a proteolytic enzyme from pineapple with anti-inflammatory and immune-modulating properties. It also enhances the absorption of quercetin — the two compounds work synergistically.

Vitamin D3

Vitamin D3 regulates over 200 genes, including many involved in immune function. Deficiency is widespread and associated with increased susceptibility to respiratory infections and autoimmune conditions.

Who Benefits Most

  • Anyone seeking everyday immune support
  • People with frequent colds or respiratory infections
  • Those with known or suspected zinc or vitamin D deficiency
  • Anyone looking for a quercetin + zinc combination in one product
  • Seasonal immune support during fall and winter

Important Considerations

Supplements are not a substitute for a varied, balanced diet or medical care. Zinc in excess can cause symptoms similar to zinc deficiency — do not exceed the recommended dose. Speak with a qualified healthcare professional before starting, especially if pregnant, nursing, or taking prescription medications.

Also available on the [Holistic Human Shop](/shop#supplements).


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This content is for educational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any new supplement.

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