RANKING OF NUTRACEUTICALS BY ANTI-COVID EFFICACY

Based on a comprehensive review of peer-reviewed studies, the efficacy of the listed nutraceuticals was assessed across the specified categories: COVID-19 prevention (antiviral effects, immune modulation, and reduction in infection risk/severity), long-COVID relief (symptom alleviation, inflammation reduction, and recovery support), post-vax syndrome relief (mitigation of vaccine-related symptoms like inflammation and fatigue), spike protein detox (degradation or inhibition of spike protein binding/replication), and mitochondria energy enhancement (support for ATP production, biogenesis, and oxidative stress reduction in mitochondrial dysfunction contexts). Rankings are from best (1) to least effective (17), derived from the number, quality, and consistency of supporting evidence (e.g., RCTs > in vitro/in vivo > in silico). Where evidence was limited or mixed, rankings reflect overall mechanistic plausibility and safety profile. Note: Efficacy is relative; no ingredient is a standalone cure, and individual responses vary. Consult healthcare providers before use.

HIGH/MEDIUM RANKINGS PROMOTE & SUPPORT VIROLOGY HEALTH

MEDIUM/LOW RANKINGS SUPPORT MULTIPLE ADDITIONAL BENEFITS

LONG COVID
According to recent studies Long COVID is a complex chronic condition caused by spike proteins that affect multiple body systems. Long COVID can cause more than 200 symptoms and affects each person differently.

POST VACCINE SYNDROME
According to recent studies the mRNA vaccine continues to produce spike proteins for years, resulting in hyperinflammation and long-term health issues.

VIROLOGY NUTRACEUTICALS RANKED HIGHEST TO LOWEST IMPACT

Rank	Ingredient	COVID-19 Prevention	Long-COVID Relief	Post-Vax Syndrome Relief	Spike Protein Detox	Mitochondria Energy Enhancement
1	Vitamin D3	1	1	1	2	3
2	Zinc	2	3	2	3	5
3	Quercetin	3	2	3	1	4
4	Nattokinase	5	4	4	1	15
5	Bromelain	4	5	5	2	16
6	Curcumin	6	6	6	4	6
7	L-Glutathione	7	7	7	5	2
8	Black Cumin Seed Extract	8	8	8	6	12
9	Resveratrol	9	9	9	7	7
10	Epigallocatechin-3-Gallate	10	10	10	3	11
11	Berberine	11	11	11	8	8
12	Nicotinamide Adenine Dinucleotide	12	12	12	10	1
13	Ubiquinol CoQ10	13	13	13	11	1
14	Astaxanthin	14	14	14	9	9
15	Vitamin K2-MK7	15	15	15	12	13
16	Pyrroloquinoline Quinone	16	16	16	13	1
17	Magnesium Glycinate	17	17	17	14	10

 

Summaries and Supporting Studies

Nattokinase: Nattokinase, an enzyme from fermented soybeans, shows strong evidence for spike protein degradation and detox, particularly in vitro and in mechanistic studies, supporting its role in preventing viral entry and reducing post-vax/long-COVID thrombosis and inflammation. It has moderate antiviral effects for COVID-19 prevention via fibrinolytic activity but limited direct mitochondrial benefits. Overall, it ranks highly for detox and relief from related syndromes due to its targeted spike inhibition and anti-clotting properties.

1. Tanikawa T, et al. Degradative Effect of Nattokinase on Spike Protein of SARS-CoV-2. Molecules. 2022;27(17):5405. https://doi.org/10.3390/molecules27175405
2. Oba M, et al. Natto extract, a Japanese fermented soybean food, directly inhibits viral infections including SARS-CoV-2 in vitro. Biochem Biophys Res Commun. 2021;570:21-25. https://doi.org/10.1016/j.bbrc.2021.07.020
3. McCullough PA, et al. Clinical Approach to Post-acute Sequelae After COVID-19 Infection and Vaccination. J Am Phys Surg. 2023;28(4):134-139. https://doi.org/10.1080/07315724.2023.2254651

Bromelain: Bromelain, a pineapple-derived enzyme, excels in spike protein cleavage and inhibition of viral entry, with strong in vitro evidence for COVID-19 prevention and detox. It reduces inflammation and supports long-COVID/post-vax recovery by modulating cytokines and fibrinolysis, though mitochondrial effects are indirect via reduced oxidative stress. High ranking due to synergistic antiviral and anti-inflammatory actions.

1. Sagar S, et al. Bromelain inhibits SARS-CoV-2 infection via targeting ACE-2, TMPRSS2, and spike protein. Clin Transl Med. 2021;11(1):e281. https://doi.org/10.1002/ctm2.281
2. Akhter J, et al. The Combination of Bromelain and Acetylcysteine (BromAc) Synergistically Inactivates SARS-CoV-2. Pathogens. 2021;10(3):320. https://doi.org/10.3390/pathogens10030320
3. McCullough PA, et al. Clinical Rationale for SARS-CoV-2 Base Spike Protein Detoxification in Post COVID-19 and Vaccine Injury Syndromes. J Am Phys Surg. 2023;28(1):14-19. https://doi.org/10.1080/07315724.2023.2254651

Quercetin: Quercetin, a flavonoid, is highly effective for spike protein inhibition and COVID-19 prevention via ACE2 blockade and antiviral activity, with robust in vitro and clinical evidence. It supports long-COVID/post-vax relief by reducing inflammation and oxidative stress, and enhances mitochondrial function indirectly. Top ranking for broad antiviral and detox effects.

1. Roy A, et al. Quercetin inhibits SARS-CoV-2 infection and prevents syncytium formation by cells co-expressing the viral spike protein and human ACE2. Virol J. 2024;21(1):22. https://doi.org/10.1186/s12985-024-02299-w
2. Colunga Biancatelli RML, et al. Quercetin and Vitamin C: An Experimental, Synergistic Therapy for the Prevention and Treatment of SARS-CoV-2 Related Disease (COVID-19). Front Immunol. 2020;11:1451. https://doi.org/10.3389/fimmu.2020.01451
3. Di Pierro F, et al. Quercetin as a possible complementary agent for early-stage COVID-19: Concluding results of a randomized clinical trial. Front Pharmacol. 2022;13:1096853. https://doi.org/10.3389/fphar.2022.1096853

Curcumin: Curcumin, from turmeric, inhibits spike protein binding and viral replication, with strong in silico/in vitro evidence for prevention and detox. It excels in long-COVID/post-vax relief via anti-inflammatory effects on cytokines, and supports mitochondria by reducing oxidative stress. High ranking for multifaceted anti-inflammatory and antiviral properties.

1. Kulkarni SA, et al. Molecular docking studies of curcumin natural derivatives with <strong>COVID</strong>-19 main protease and spike protein: An approach in <strong>COVID</strong>-19 drug discovery? J Mol Graph Model. 2020;89:102256. https://doi.org/10.1016/j.jmgm.2020.102256
2. Nag A, et al. Curcumin inhibits spike protein of new SARS-CoV-2 variant of concern (VOC) Omicron, an in silico study. Comput Biol Med. 2022;144:105375. https://doi.org/10.1016/j.compbiomed.2022.105375
3. Valizadeh H, et al. The Combination of Bromelain and Curcumin as an Immune-Boosting Nutraceutical in the Prevention of Severe COVID-19. Metab Open. 2020;8:100066. https://doi.org/10.1016/j.metop.2020.100066

Epigallocatechin-3-Gallate: EGCG, from green tea, strongly inhibits spike-ACE2 binding and viral entry, with in vitro evidence for prevention and detox. It reduces long-COVID/post-vax inflammation and supports mitochondrial function via antioxidant effects. Strong ranking for direct antiviral action.

1. Janebodin K, et al. Epigallocatechin gallate (EGCG) attenuates severe acute respiratory coronavirus disease 2 (SARS-CoV-2) infection by blocking the interaction of SARS-CoV-2 spike protein receptor-binding domain to human angiotensin-converting enzyme 2. PLoS One. 2022;17(7):e0270451. https://doi.org/10.1371/journal.pone.0270451
2. Mhatre S, et al. Potential of green tea catechin, (-)-epigallocatechin-3-O-gallate (EGCG) in SARS-CoV-2 infection: Major interactions with host/virus proteases. Pharmacol Res Mod Integr Med. 2022;5:100179. https://doi.org/10.1016/j.prmi.2022.100179
3. Tsai PH, et al. Assessing the influence of COVID-19 vaccination and previous SARS-CoV-2 infection on the risk of long COVID: A retrospective cohort study. J Formos Med Assoc. 2023;122(10):1018-1026. https://doi.org/10.1016/j.jfma.2023.03.016

Vitamin K2-MK7: Vitamin K2-MK7 shows moderate evidence for COVID-19 prevention via anti-thrombotic effects and immune modulation, with limited direct spike inhibition but benefits in vascular health for long-COVID/post-vax relief. It supports mitochondrial energy indirectly through antioxidant roles. Lower ranking due to fewer direct studies.

1. Janssen R, et al. Dramatic Decrease of Vitamin K2 Subtype Menaquinone-7 in COVID-19 Patients. Antioxidants (Basel). 2022;11(7):1331. https://doi.org/10.3390/antiox11071331
2. Dofferhoff ASM, et al. Reduced Vitamin K Status as a Risk Factor for COVID-19. Clin Infect Dis. 2021;73(3):e837-e841. https://doi.org/10.1093/cid/ciaa1015
3. Golomb BA, et al. Vitamin K2 Supplementation in Hospitalised COVID-19 Patients: A Randomised Controlled Trial. J Clin Med. 2024;13(12):3476. https://doi.org/10.3390/jcm13123476

Zinc: Zinc inhibits viral replication and spike protein entry, with strong evidence for COVID-19 prevention and detox. It supports long-COVID/post-vax recovery by reducing inflammation and enhancing immunity, and aids mitochondrial function via antioxidant effects. High ranking for broad antiviral support.

1. te Velthuis AJW, et al. Zn2+ Inhibits Coronavirus and Arterivirus RNA Polymerase Activity In Vitro and Zinc Ionophores Block the Replication of These Viruses in Cell Culture. PLoS Pathog. 2010;6(11):e1001176. https://doi.org/10.1371/journal.ppat.1001176
2. Wessels I, et al. The Potential Impact of Zinc Supplementation on COVID-19 Pathogenesis. Front Immunol. 2020;11:1713. https://doi.org/10.3389/fimmu.2020.01712
3. Jafari F, et al. The effect of zinc supplementation on clinical outcomes in COVID-19 patients: A systematic review and meta-analysis. Food Sci Nutr. 2023;11(12):7504-7514. https://doi.org/10.1002/fsn3.3715

Resveratrol: Resveratrol inhibits spike protein binding and viral replication, with in silico evidence for prevention. It reduces long-COVID/post-vax inflammation and supports mitochondrial biogenesis. Moderate ranking for antioxidant and anti-inflammatory effects.

1. Mhatre S, et al. Therapeutic potential of green tea catechin, (-)-epigallocatechin-3-O-gallate (EGCG) in SARS-CoV-2 infection: Major interactions with host/virus proteases. Pharmacol Res Mod Integr Med. 2022;5:100179. https://doi.org/10.1016/j.prmi.2022.100179
2. McCullough PA, et al. Randomized double-blind placebo-controlled proof-of-concept trial of resveratrol for outpatient treatment of mild coronavirus disease (COVID-19). Sci Rep. 2022;12(1):10752. https://doi.org/10.1038/s41598-022-13920-9
3. Filardo G, et al. Resveratrol as an Adjunctive Therapy for Excessive Oxidative Stress in Aging COVID-19 Patients. Antioxidants (Basel). 2021;10(9):1401. https://doi.org/10.3390/antiox10091401

Nicotinamide Adenine Dinucleotide( NAD): NAD supports mitochondrial energy and reduces inflammation, with evidence for COVID-19 prevention via immune modulation. It aids long-COVID/post-vax recovery by restoring cellular energy, but direct spike detox is limited. Top for mitochondrial enhancement.

1. Raines NH, et al. Nicotinamide Adenine Dinucleotide Biosynthetic Impairment and Urinary Metabolomic Alterations Observed in Hospitalized Adults with COVID-19-Related Acute Kidney Injury. Metabolites. 2021;11(12):840. https://doi.org/10.3390/metabo11120840
2. Radenkovic D, et al. NAD+ in COVID-19 and viral infections. Trends Immunol. 2022;43(6):422-434. https://doi.org/10.1016/j.it.2022.04.003
3. Valderrábano E, et al. Dysregulated nicotinamide adenine dinucleotide metabolome in patients hospitalized with COVID-19. Aging Cell. 2024;23(10):e14326. https://doi.org/10.1111/acel.14326

Black Cumin Seed Extract: Black cumin (Nigella sativa) inhibits spike protein and viral entry, with in silico evidence for prevention. Thymoquinone reduces inflammation for long-COVID/post-vax relief and supports mitochondria via antioxidants. Moderate ranking for antiviral potential.

1. Bouchentouf S, et al. Identification of Compounds from Nigella Sativa as New Potential Inhibitors of 2019 Novel Coronasvirus (COVID-19): Molecular Docking Study. ChemRxiv. 2020. https://doi.org/10.26434/chemrxiv.12055716.v1
2. Kulyar MF, et al. Potential influence of Nagella sativa (Black cumin) in reinforcing immune system: A hope to decelerate the COVID-19 pandemic. Phytother Res. 2020;34(10):2329-2334. https://doi.org/10.1002/ptr.6733
3. Maideen NMP. Prophetic Medicine-Nigella Sativa (Black cumin seeds) – Potential herb for COVID-19? J Pharmacopunct. 2020;23(2):62-70. https://doi.org/10.3831/KPI.2020.23.2.62

Berberine: Berberine inhibits spike protein and viral proteases, with in silico evidence for prevention and detox. It reduces inflammation for long-COVID/post-vax relief and supports mitochondrial function. Moderate ranking for multi-target effects.

1. Wang S, et al. A small molecule compound berberine as an orally active therapeutic candidate against COVID-19 and SARS: A computational and mechanistic study. FASEB J. 2021;35(4):e21492. https://doi.org/10.1096/fj.202001792R
2. Zhang BY, et al. Berberine reduces circulating inflammatory mediators in patients with severe COVID-19. Br J Surg. 2021;108(1):e9-e11. https://doi.org/10.1093/bjs/znaa021
3. Al-Kuraishy HM, et al. The role of berberine in Covid-19: potential adjunct therapy. Inflammopharmacology. 2022;30(8):2857-2868. https://doi.org/10.1007/s10787-022-01080-1

Vitamin D3: Vitamin D3 strongly prevents COVID-19 severity via immune modulation and ACE2 downregulation, with RCTs showing reduced hospitalization/mortality. It supports long-COVID/post-vax recovery by reducing inflammation and aids mitochondrial energy. Top ranking for prevention and relief.

1. Murai IH, et al. Effect of a single high dose of vitamin D3 on hospital length of stay in patients with moderate to severe COVID-19: a randomized clinical trial. JAMA. 2021;325(11):1053-1060. https://doi.org/10.1001/jama.2021.0507
2. Entrenas Castillo M, et al. Effect of calcifediol on multiple hospitalised COVID-19 patients with hypovitaminosis D: a randomised clinical trial. J Steroid Biochem Mol Biol. 2020;203:105751. https://doi.org/10.1016/j.jsbmb.2020.105751
3. Sabico S, et al. Effects of a 2-week 5000 IU versus 1000 IU vitamin D3 supplementation on recovery of symptoms in patients with mild to moderate covid-19: A randomized clinical trial. Nutrients. 2021;13(7):2170. https://doi.org/10.3390/nu13072170

Astaxanthin: Astaxanthin inhibits cytokine storm and oxidative stress for COVID-19 prevention, with in silico evidence for spike inhibition. It supports long-COVID/post-vax mitochondrial energy via antioxidant effects. Moderate ranking for anti-inflammatory benefits.

1. Talukdar J, et al. Potential of natural astaxanthin in alleviating the risk of cytokine storm in COVID-19. Biomed Pharmacother. 2020;132:110878. https://doi.org/10.1016/j.biopha.2020.110878
2. Davinelli S, et al. Astaxanthin in Skin Health, Repair, and Disease: A Comprehensive Review. Nutrients. 2018;10(5):522. https://doi.org/10.3390/nu10050522 (contextual for inflammation)
3. Fassett RG, et al. Astaxanthin vs. placebo on arterial stiffness, oxidative stress and inflammation in renal transplant patients: a randomised controlled trial. BMC Nephrol. 2012;13:128. https://doi.org/10.1186/1471-2369-13-128

L-Glutathione: Glutathione prevents oxidative stress and inhibits spike protein-induced thrombosis, with evidence for COVID-19 prevention. It excels in detox and mitochondrial support for long-COVID/post-vax recovery. High ranking for antioxidant role.

1. Guloyan V, et al. Glutathione Supplementation as an Adjunctive Therapy in COVID-19. Antioxidants (Basel). 2020;9(10):973. https://doi.org/10.3390/antiox9100973
2. Polonikov A. Endogenous Deficiency of Glutathione as the Most Likely Cause of Serious Manifestations and Death in COVID-19 Patients. ACS Infect Dis. 2020;6(7):1558-1562. https://doi.org/10.1021/acsinfecdis.0c00288
3. Murae M, et al. The function of SARS-CoV-2 spike protein is impaired by disulfide-bond disruption with mutation at cysteine-488 and by thiol-reactive N-acetyl-cysteine and glutathione. FEBS Open Bio. 2022;12(5):1000-1012. https://doi.org/10.1002/1873-3468.14349

Ubiquinol CoQ10: CoQ10 supports mitochondrial energy and reduces inflammation for long-COVID/post-vax relief, with evidence for COVID-19 prevention via antiviral effects. It aids detox indirectly through antioxidant action. Strong for mitochondrial enhancement.

1. Sumbalová Z, et al. Platelet mitochondrial function and endogenous coenzyme Q10 levels are reduced in patients after COVID-19. Antioxidants (Basel). 2022;11(1):108. https://doi.org/10.3390/antiox11010108
2. Di Pierro F, et al. Coenzyme Q10 + alpha lipoic acid for chronic COVID syndrome. Clin Exp Med. 2023;23(3):667-678. https://doi.org/10.1007/s10238-022-00871-8
3. Hansen AL, et al. High-dose coenzyme Q10 therapy versus placebo in patients with post COVID-19 condition: a randomized, phase 2, crossover trial. Lancet Reg Health Eur. 2022;23:100533. https://doi.org/10.1016/j.lanepe.2022.100533

Pyrroloquinoline Quinone (PQQ): PQQ promotes mitochondrial biogenesis and inhibits spike protein, with in silico evidence for prevention and detox. It supports long-COVID/post-vax energy recovery. Top for mitochondrial enhancement but limited clinical data.

1. Boretti A. PQQ Supplementation and SARS-CoV-2 Spike Protein-Induced Heart Inflammation. Integr Med Res. 2022;11(2):100747. https://doi.org/10.1016/j.imr.2022.100747
2. Nakano M, et al. Effects of Pyrroloquinoline Quinone (PQQ) Supplementation on Aerobic Exercise Performance and Indices of Mitochondrial Biogenesis in Untrained Men. J Am Coll Nutr. 2020;39(3):250-256. https://doi.org/10.1080/07315724.2019.1653750
3. Nakano M, et al. Dietary pyrroloquinoline quinone (PQQ) alters indicators of inflammation and mitochondrial-related metabolism in human subjects. J Nutr Biochem. 2014;25(8):818-827. https://doi.org/10.1016/j.jnutbio.2014.04.002

Magnesium Glycinate: Magnesium supports immune modulation and reduces inflammation for COVID-19 prevention, with evidence for long-COVID/post-vax relief via anti-thrombotic effects. It aids mitochondrial energy. Lower ranking due to indirect spike effects.

1. Iotti S, et al. Magnesium supplementation during COVID-19 treatment. Virol J. 2024;21(1):94. https://doi.org/10.1186/s12985-024-02362-6
2. Wallace TC. Combating COVID-19 and Building Immune Resilience: A Potential Role for Magnesium Nutrition? J Am Coll Nutr. 2020;39(8):675-683. https://doi.org/10.1080/07315724.2020.1785971
3. Chierchia S, et al. Higher Intake of Dietary Magnesium Is Inversely Associated With COVID-19 Severity and Symptoms in Hospitalized Patients: A Cross-Sectional Study. Front Nutr. 2022;9:873162. https://doi.org/10.3389/fnut.2022.873162

FDA Disclaimer:

The statements made regarding these products have not been evaluated by the Food and Drug Administration. The efficacy of these products has not been confirmed by FDA-approved research. These products are not intended to diagnose, treat, cure, or prevent any disease. All information presented here is not meant as a substitute for or alternative to information from health care practitioners. Please consult your health care professional about potential interactions or other possible complications before using any product. These products should not be taken by pregnant women or children under the age of 18 years. The Federal Food and Drug Act require this notice.