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
Vitamin C, D3 & Zinc

Vitamin C, D3 & Zinc

Bluebonnet Nutrition

#Multivitamin
88
Safety90
Efficacy85
Transparency80
Based on Examine, Wikipedia, and 23 other sources

Overview

This supplement offers a well-formulated combination of Vitamin C, D3, and Zinc, with each ingredient provided at a clinically relevant and effective dose. The chosen forms, L-ascorbic acid, cholecalciferol, and zinc bisglycinate chelate, ensure good bioavailability. This blend synergistically supports immune function and overall health.

The Good

Optimal Doses for Immune Support: Provides effective dosages of Vitamin C, D3, and Zinc, scientifically recognized for immune system enhancement.

High Bioavailability: Uses L-ascorbic acid for Vitamin C, Cholecalciferol (D3) for Vitamin D, and Zinc Bisglycinate Chelate for Zinc, ensuring superior absorption.

Synergistic Formula: The combination of these specific nutrients offers complementary benefits for comprehensive health support.

The Bad

High Zinc Dose: While effective, 50 mg of zinc is high and continuous long-term use without medical supervision could lead to copper deficiency.

Potential for Gastrointestinal Upset: High doses of Vitamin C and Zinc can occasionally cause mild digestive issues in sensitive individuals.

Interaction with Medications: Zinc can interact with certain antibiotics (quinolones, tetracyclines), and Vitamin D can interact with some medications, requiring medical consultation.

Is it for you?

Best For: Individuals seeking immune support, those with potential vitamin C, D3, or zinc deficiencies, general wellness

Skip If: You have a known allergy to any ingredient, or are taking medications that interact with Vitamin C, D3, or Zinc.

Ingredients Analysis

Vitamin C (as L-ascorbic acid)

250 mg

Vitamin D (as cholecalciferol from lanolin)

50 mcg

Zinc (as bisglycinate chelate)

50 mg

How to Use

Take one serving daily with a meal, or as directed by a healthcare professional. Do not exceed recommended dosage.

Frequency:

Daily

Best Time:

Morning

When:

With food

Who Should Use This

Best For:

Individuals seeking immune support, those with potential vitamin C, D3, or zinc deficiencies, general wellness

Recommended Articles

Herbal Boosters & COVID-19 Antivirals: Safe Mix?

Herbal Boosters & COVID-19 Antivirals: Safe Mix?

Herbal supplements may interact with COVID-19 antivirals, requiring careful consideration and further research.

2025's Top Vegan Protein Powders: A Buyer's Guide

2025's Top Vegan Protein Powders: A Buyer's Guide

In 2025, the best vegan protein powders are third-party tested, ensuring purity, safety, and high nutritional content.

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.