Best Supplements for Immunity
7 evidence-based options for immunity, summarized from the research: what they do, how to dose them, and how they work together.
Inulin
A prebiotic fiber that feeds beneficial gut bacteria.
L-Glutamine
The gut-lining repair amino acid and immune fuel.
Panax Ginseng
A classic adaptogen for energy, stress, and cognition.
Probiotics
Beneficial bacteria for gut and immune balance.
Vitamin C
Antioxidant vitamin and iron-absorption amplifier.
Vitamin D3
The sunshine vitamin behind bone, immune, and mood health.
Zinc
An immune and hormone workhorse trace mineral.
Where to buy for immunity
Our top options for this goal. Choose third-party-tested brands in the forms each supplement's page recommends.
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Combinations to know
How these supplements pair with each other and beyond.
Inulin + Probiotics
Inulin is a prebiotic that feeds the beneficial bacteria in probiotic supplements, a classic synbiotic pairing.
L-Glutamine + Probiotics
Glutamine restores the gut lining while probiotics help balance the microbiome, a complementary gut-health stack.
Vitamin C + Zinc
Frequently combined for immune support during cold season.
L-Glutamine + Inulin
Glutamine helps restore the gut lining while inulin feeds beneficial bacteria, a complementary gut-health stack.
Probiotics + Zinc
Zinc helps maintain the integrity of the gut lining.
Collagen + Vitamin C
Vitamin C is a required cofactor for the enzymes that build collagen, so adequate vitamin C supports both dietary collagen and the body's own production.
Frequently asked questions
What are the best supplements for immunity?
The most-researched options are Inulin, L-Glutamine, Panax Ginseng, Probiotics, Vitamin C, Vitamin D3, and Zinc. Each is summarised with its benefits, typical dosing, and the strength of the evidence behind it.
How were these immunity supplements chosen?
These are the supplements in the Vital Matrix library most commonly used for immunity, graded by the strength of human evidence. See our methodology for how we grade the research.
Can you combine supplements for immunity?
Yes, several pair well. For example, Inulin and Probiotics: Inulin is a prebiotic that feeds the beneficial bacteria in probiotic supplements, a classic synbiotic pairing.