ProveIt Supplements

Independent, evidence-based supplement analysis.

✓ Not Sponsored

✓ No Paid Reviews

✓ Science-Based

Company

  • About Us
  • Our Methodology
  • Contact
  • Blog
  • Authors

Legal

  • Privacy Policy
  • Terms of Service
  • Medical Disclaimer
  • Affiliate Disclosure

Resources

  • All Categories
  • Ingredient Database
  • Browse Supplements
  • FAQ

© 2025 ProveIt Supplements. All rights reserved.

Medical Disclaimer: The information provided is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen.

Prove It
Browse SupplementsBlogAuthorsAboutMethodologyFAQ
Get Your Personalized Supplement StackSupplement Stack Quiz
Menu
HomeBrowse SupplementsBlogAuthorsAboutMethodologyFAQ
Daily Immune Defense

Daily Immune Defense

Doctor's Best

#Other
67
Safety72
Efficacy62
Transparency68
Based on Examine, Wikipedia, and 23 other sources

Overview

This product combines several ingredients that have shown promise in supporting various aspects of immune function and overall health. While not all mechanisms are completely understood and the exact synergy between ingredients is unclear, the supplement is carefully formulated at clinically significant dosages. The ingredients can support different areas of both the innate and adaptive immune systems, although the long term efficacy of this specific formula requires further investigation. The effects of the formula are particularly notable for their comprehensive approach to immune modulation and overall wellness.

The Good

Comprehensive immune support through multiple mechanisms.

Includes clinically relevant doses of vitamin D and zinc for daily intake.

Contains potent antioxidants and anti-inflammatory ingredients.

The Bad

Potential for gastrointestinal discomfort with higher doses of zinc.

Requires multiple doses per day which may reduce compliance.

Limited long-term safety data on the specific combination of ingredients.

Is it for you?

Best For: Individuals seeking general immune support, those who trust the Doctor's Best brand

Skip If: You are pregnant, nursing, or have a medical condition without consulting a healthcare provider.

Ingredients Analysis

Vitamin D

1000 IU

Zinc

15 mg

Copper

1 mg

Immunolin(R)

500 mg

Epicor Dried Yeast Fermentate

250 mg

Emed-Ole(Tm) Olive Leaf Extract

250 mg

How to Use

Likely taken orally with water, as per standard supplement capsule/tablet usage.

Frequency:

Daily

Best Time:

Anytime

When:

With food

Who Should Use This

Best For:

Individuals seeking general immune support, those who trust the Doctor's Best brand

Similar Products

Vitamin D by Zarbee's Naturals Baby

Vitamin D

Zarbee's Naturals Baby

Vitamin D by ZARBEE'S®

Vitamin D

ZARBEE'S®

Vitamin D by vitl

Vitamin D

vitl

Vitamin D by Thorne Research

Vitamin D

Thorne Research

Vitamin D by BioGenesis Nutraceuticals

Vitamin D

BioGenesis Nutraceuticals

Vitamin D by Thorne

Vitamin D

Thorne

Recommended Articles

Glutamine Dosage for Gut Health: A Guide

Glutamine Dosage for Gut Health: A Guide

Glutamine supports gut health with a recommended dosage of 5-30 grams per day, available in various supplement forms.

Immune Supplements & Pregnancy Safety 2025

Immune Supplements & Pregnancy Safety 2025

The safety of immune-boosting supplements during pregnancy in 2025 hinges on supplement type, dosage, and health conditions.

Top Immune Support Ingredients: What Works?

Top Immune Support Ingredients: What Works?

Vitamin D, zinc, and echinacea are key ingredients in immune support supplements, backed by scientific evidence.

Milk Thistle & Liver Health: The Role of Silymarin

Milk Thistle & Liver Health: The Role of Silymarin

Silymarin in milk thistle significantly supports liver health by providing antioxidant properties and therapeutic effects on liver diseases.