NutriStack
Symptom·Immune·Reviewed May 30, 2026
Supplements for Immunosenescence / frequent infections in older adults.
When immunosenescence / frequent infections in older adults is the complaint, these are the supplements most often associated with it in the NutriStack library, ranked by how directly each one targets it and by the strength of the evidence.
Ranked by relevance, top first.
Relevance reflects how directly each supplement targets this symptom in the NutriStack map. Evidence is the supplement’s own rating. Open any name for the full profile.
- 01Vitamin D3Moderate85% match
Vitamin D modulates both innate and adaptive immune responses, and correcting the deficiency common in older adults may support immune defense against respiratory infections.
SuggestedVitamin D3 softgels, 1000 to 2000 IU daily with a meal - 02ZincModerate79% match
Zinc is required for the development and function of immune cells, and older adults are prone to marginal deficiency that may impair immune competence.
SuggestedZinc picolinate or citrate, 10 to 15 mg daily with food - 03Vitamin CModerate68% match
Vitamin C supports the function of immune cells and skin barrier integrity, and may modestly reduce the duration of respiratory infections in some groups.
SuggestedBuffered ascorbic acid, 250 to 500 mg daily - 04SeleniumLimited62% match
Selenium is incorporated into antioxidant selenoproteins that support immune cell function, and low status has been linked to weaker immune responses.
SuggestedSelenomethionine, 55 to 100 mcg daily - 05ProbioticsLimited58% match
Certain probiotic strains may support gut-associated immune signaling and have been associated with fewer or shorter respiratory infections in some trials.
SuggestedMulti-strain capsule with documented Lactobacillus and Bifidobacterium strains - 06Beta-CaroteneLimited55% match
Beta-carotene is a vitamin A precursor that supports mucosal barrier integrity and immune cell function, though immune outcomes from supplementation are inconsistent.
SuggestedBeta-carotene from a mixed-carotenoid food source, modest dose
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These rankings come from the same library that powers the NutriStack app. Open any supplement for full dosing, forms, interactions, and citations.