Metagenics Immune Defense Pack, 30 Packets supplement bottle
Metagenics

Immune Defense Pack, 30 Packets

What We Researched
16 active ingredients analyzed · 7 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
67
Product Score Fair
93
Brand Score Excellent

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as Ultra Potent C® and ascorbic acid) 1,200 mg 1,333%
Vitamin D (as cholecalciferol) (5,000 IU) 125 mcg 625%
Niacin 70 mg 438%
Calcium 40 mg 3%
Zinc (as zinc glycinate) 30 mg 273%
Quercetin 750 mg **
N-Acetylcysteine 600 mg **
Decaffeinated† Green Tea (Camellia sinensis) Leaf Extract [standardized to 60% (225 mg) catechins and 40% (150 mg) epigallocatechin gallate (EGCG)] 375 mg **
L-Lysine 33 mg **
Citrus Bioflavonoid Complex [standardized to 45% (14.4 mg) full spectrum bioflavonoids] 32 mg **
Tetrasodium Pyrophosphate 14 mg **
Alpha D-Ribofuranose 13 mg **
Xylitol 9 mg **
L-Cysteine 8 mg **
L-Glutathione 5 mg **
Bioavailability Very Good

Absorption Rating

  • Vitamin C (as Ultra Potent C® and ascorbic acid) Fair
  • Vitamin D (as cholecalciferol) (5,000 IU) Good
  • Niacin Good
  • Calcium Good
  • Zinc (as zinc glycinate) Fair
  • Quercetin Fair
  • N-Acetylcysteine Good
  • Decaffeinated† Green Tea (Camellia sinensis) Leaf Extract [standardized to 60% (225 mg) catechins and 40% (150 mg) epigallocatechin gallate (EGCG)] Fair
  • L-Lysine Good
  • Citrus Bioflavonoid Complex [standardized to 45% (14.4 mg) full spectrum bioflavonoids] Fair
  • Tetrasodium Pyrophosphate Good
  • Alpha D-Ribofuranose Good
  • Xylitol Fair
  • L-Cysteine Good
  • L-Glutathione Fair
Other Ingredients Fair

Fillers & Additives

No inactive ingredient data available.

Efficacy Fair

Dosage Analysis

  • Vitamin C (as Ultra Potent C® and ascorbic acid) 1,200 mg Effective
  • Vitamin D (as cholecalciferol) (5,000 IU) 125 mcg High
  • Niacin 70 mg High
  • Calcium 40 mg Under-dosed
  • Zinc (as zinc glycinate) 30 mg Effective
  • Quercetin 750 mg Effective
  • N-Acetylcysteine 600 mg Effective
  • Decaffeinated† Green Tea (Camellia sinensis) Leaf Extract [standardized to 60% (225 mg) catechins and 40% (150 mg) epigallocatechin gallate (EGCG)] 375 mg Effective
  • L-Lysine 33 mg Under-dosed
  • Citrus Bioflavonoid Complex [standardized to 45% (14.4 mg) full spectrum bioflavonoids] 32 mg Under-dosed
  • Tetrasodium Pyrophosphate 14 mg Under-dosed
  • Alpha D-Ribofuranose 13 mg Under-dosed
  • Xylitol 9 mg Under-dosed
  • L-Cysteine 8 mg Under-dosed
  • L-Glutathione 5 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as Ultra Potent C® and ascorbic acid) 1,200 mg 1,333%
Vitamin D (as cholecalciferol) (5,000 IU) 125 mcg 625%
Niacin 70 mg 438%
Calcium 40 mg 3%
Zinc (as zinc glycinate) 30 mg 273%
Sodium 10 mg <1%
Quercetin 750 mg **
N-Acetylcysteine 600 mg **
Decaffeinated† Green Tea (Camellia sinensis) Leaf Extract [standardized to 60% (225 mg) catechins and 40% (150 mg) epigallocatechin gallate (EGCG)] 375 mg **
L-Lysine 33 mg **
Citrus Bioflavonoid Complex [standardized to 45% (14.4 mg) full spectrum bioflavonoids] 32 mg **
Tetrasodium Pyrophosphate 14 mg **
Alpha D-Ribofuranose 13 mg **
Xylitol 9 mg **
L-Cysteine 8 mg **
L-Glutathione 5 mg **

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$88$87$86$85$84 Mar 12 $86.00
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Metagenics

Founded 1983 · Aliso Viejo, California, United States · 185 products · metagenics.com

Certifications

7 certifications
B Corp Certified Verified Source
Consumerlab Verified
Gluten Free Gfco Verified Source
Non Gmo Project Verified Source
Fda Gmp Inspections Verified Source
Nsf Gmp Verified Source
Usp Verified Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Claimed Source
In House Testing — Verified Source

Violation History

3 incidents
Fda Warning A structure/function claim for 'Metagenics HerWellness Naturally Balanced' was deemed by the FDA to suggest the product is intended for use as a drug.2025-02-07Source
Prop 65 Lead2019-05-30Source
Fda Warning Mislabeling of 14 products as medical foods and making unapproved new drug claims.2013-08-13Source
Related Supplements
Frequently Asked Questions
Is Metagenics Immune Defense Pack, 30 Packets a good supplement?

Metagenics Immune Defense Pack, 30 Packets received a product quality score of 67/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 16 active ingredients with 30 servings per container. The manufacturer, Metagenics, holds a brand trust score of 93/100 with 7 verified certifications including B Corp Certified, Consumerlab, Gluten Free Gfco, Non Gmo Project.

What are the ingredients in Metagenics Immune Defense Pack, 30 Packets?

Metagenics Immune Defense Pack, 30 Packets contains 16 active ingredients: Vitamin C (as Ultra Potent C® and ascorbic acid) (1,200 mg), Vitamin D (as cholecalciferol) (5,000 IU) (125 mcg), Niacin (70 mg), Calcium (40 mg), Zinc (as zinc glycinate) (30 mg), Sodium (10 mg), and 10 more. Notable high-dose ingredients include Vitamin C at 1,333% DV, Vitamin D at 625% DV, Niacin at 438% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Metagenics Immune Defense Pack, 30 Packets safe to take?

Metagenics Immune Defense Pack, 30 Packets has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Metagenics a trustworthy supplement brand?

Metagenics receives a brand trust score of 93/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1983 and headquartered in Aliso Viejo, California, United States, the company offers 185 products in their lineup. They hold 7 verified certifications including B Corp Certified, Consumerlab, Gluten Free Gfco, Non Gmo Project. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Metagenics has 3 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.