Advantages of multiple-component antioxidant supplementation.
| Key Advantage | Explanation and underlying mechanisms |
|---|---|
| Multi-target action | Multiple nutraceuticals simultaneously address oxidative stress and inflammation through complementary pathways (e.g., direct reactive oxygen species [ROS] scavenging, enzymatic antioxidant support, transcription factor modulation), providing comprehensive protection that single compounds cannot achieve. |
| Lower effective doses through synergy | Synergistic interactions between components allow for reduced individual compound doses while maintaining or improving efficacy, potentially minimizing side effects and toxicity risks associated with high-dose single-antioxidant supplementation. |
| Broader antioxidant coverage | Combining water-soluble antioxidants (vitamin C, polyphenols) with lipid-soluble antioxidants (vitamin E, carotenoids) provides protection across different cellular compartments—aqueous cytosol, lipid membranes, and organelles—preventing compartment-specific oxidative imbalances. |
| Antioxidant network and regeneration | Vitamin C and polyphenols (quercetin, resveratrol, curcumin) regenerate oxidized vitamin E (tocopheroxyl radical) back to its active form, while selenium indirectly supports this network by maintaining glutathione peroxidase activity and the reduced glutathione pool, creating a self-sustaining protective system. |
| Prevention of pro-oxidant paradox | Balanced combinations prevent the paradoxical pro-oxidant effects that can occur with high doses of single antioxidants, such as vitamin C-mediated Fenton reactions with free iron, vitamin E propagation of lipid peroxidation when not regenerated, and beta-carotene pro-oxidant activity in high-oxygen environments. |
| Preservation of hormetic response through Nrf2 activation | Polyphenols (curcumin, resveratrol, quercetin) directly activate the Nrf2 pathway, stimulating endogenous antioxidant enzyme expression (superoxide dismutase, catalase, glutathione peroxidase), thus preserving rather than suppressing the cell's adaptive stress response capacity that chronic high-dose single antioxidants may blunt. |
| Enzymatic cofactor support | Essential trace minerals—selenium (glutathione peroxidase), zinc (superoxide dismutase), and magnesium (numerous enzymatic reactions)—serve as cofactors that potentiate endogenous antioxidant enzyme systems, amplifying the protective effects of vitamin and polyphenol antioxidants. |
| Enhanced bioavailability and effectiveness | In nature, polyphenols form complexes with Mg2+, which increases their antioxidant effectiveness and bioavailability. Multi-component formulations can replicate these natural synergies found in whole foods |
| Mimics natural food matrices | This approach replicates the complex phytochemical matrices found in fruits, vegetables, and herbs, where antioxidants naturally occur together in balanced proportions optimized by evolutionary processes for maximal biological benefit |
The supplementary material for this article is available at: https://www.explorationpub.com/uploads/Article/file/1001420_sup_1.pdf.
MP: Conceptualization, Writing—original draft, Writing—review & editing, Validation, Visualization. MC: Conceptualization, Writing—original draft, Writing—review & editing, Validation, Visualization. ED: Conceptualization, Writing—original draft, Writing—review & editing, Validation, Visualization. AG: Writing—original draft, Writing—review & editing, Validation. ER: Writing—original draft, Writing—review & editing, Validation. GM: Writing—original draft, Writing—review & editing, Validation. GP: Writing—review & editing, Supervision, Validation, Visualization. DP: Conceptualization, Project administration, Methodology, Supervision, Writing—original draft, Writing—review & editing, Validation, Visualization. All authors read and approved the submitted version.
The authors declare that they have no conflicts of interest.
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