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Daily Immune Defense

product on market Capsule Doctor's Best Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Vitamin D and zinc are supported by strong evidence for maintaining immune function, while copper balances zinc intake. Immunolin and EpiCor are included for immune support, though research on these specific branded ingredients is more limited. The profile consists of well-studied nutrients with a high safety rating.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Daily Immune Defense
Open Full PDF View on NIH DSLD →
Details

Label Data

2 Capsule(s)
Serving Size
60
Servings
Other Combinations
Product Type
50%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

1000 IU (250% DV)
1.7× RDA — within safe limits 608 studies (A:16, B:251)
15 mg (100% DV)
1.4× RDA — within safe limits 263 studies (A:6, B:134)
1 mg (50% DV)
1.1× RDA — within safe limits 37 studies (A:0, B:11)
Immunolin(R)
500 mg
EpiCor dried Yeast Fermentate
250 mg
Market median: 500.0mg (115 products)

Other Ingredients

Gelatin Cellulose Magnesium Stearate Silicon Dioxide
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Adult Use: Take two capsules twice daily, with or without food.

Formulation Notes

Featuring EPICOR(R)

Not Suitable for Vegetarians

Daily Immune Defense featuring EpiCor(R) also contains 2000 IU of vitamin D3 and 30 mg of zinc per dose.

Additional Information

Vitamin D3 is known to powerfully modulate immune function and the activity of immune cells, and promote innate immunity.* Zinc promotes immune wellness by supporting the body’s T-cell response and enhancing the body’s immune resistance.* Copper is included to maintain a healthy zinc-copper ratio, as each mineral competes with the other for absorption. A proper balance of the two is important for health.* Modulates Immune System Function* Promotes Optimal Immune Health and Wellness*

POWERFUL IMMUNE SUPPORT*

CONTAINS NOTHING OTHER THAN LISTED INGREDIENTS

R 01/12

Metadata

Product Details

UPC / SKU7 53950 00179 4
DSLD Entry Date2013-11-25
Product TypeOther Combinations
FormCapsule
BrandDoctor's Best
DSLD ID25491
Data Updated2026-04-11
Research

Research Evidence

872
Research Sources
53
Avg Quality
309
Meta Analysis
309
Clinical Trial
111
Rct
71
Systematic Review
55
Guideline
4
Cochrane Review
4
Regulatory Source
2
Other
2
Narrative Review
2
Observational
1
Openfda Safety
A Vitamin D and vitamin D analogues for preventing fractures associated with involutional and post-menopausal osteoporosis
Meta Analysis The Cochrane database of systematic reviews 2009 PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Vitamin D and vitamin D analogues for preventing fractures in post-menopausal women and older men
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Vitamin D supplementation for prevention of cancer in adults
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Interventions for preventing falls in older people in care facilities and hospitals
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Drugs for preventing lung cancer in healthy people
Meta Analysis The Cochrane database of systematic reviews 2020 PubMed DOI
A Vitamin D supplementation for prevention of mortality in adults
Meta Analysis The Cochrane database of systematic reviews 2011 PubMed DOI
A High prevalence of vitamin D deficiency in Asia: A systematic review and meta-analysis
Meta Analysis Critical reviews in food science and nutrition 2023 PubMed DOI
A The effect of vitamin D supplementation on depressive symptoms in adults: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2023 PubMed DOI
A Interventions for preventing falls in older people living in the community
Meta Analysis The Cochrane database of systematic reviews 2009 PubMed DOI
View all evidence for Vitamin D →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.