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

© 2026 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
Niacin (Vitamin B3)

Niacin (Vitamin B3)

BulkSupplements.com

#Other
65
Safety70
Efficacy60
Transparency90
Based on Examine, Wikipedia, and 23 other sources

Overview

Niacin (Vitamin B3) is a crucial nutrient involved in energy production and supports cellular function through the production of NAD+. It may improve cholesterol levels and potentially support cognitive function. However, its impact on cardiovascular disease is uncertain due to potential increases in insulin resistance. The evidence for longevity benefits is also currently preliminary and requires further research. While niacin provides some health benefits, the evidence for its use as a sole cardiovascular or longevity supplement is inconclusive due to potential downsides.

The Good

May improve cholesterol levels

Supports cellular function through NAD+ production

Potential cognitive support and longevity benefits (needs more research)

The Bad

Flushing (redness and warmth of the face and neck)

Potential for increased insulin resistance with prolonged use

Possible gastrointestinal issues (nausea, vomiting, diarrhea)

Is it for you?

Best For: Individuals seeking general wellness support, those with specific B3 deficiencies, people looking for pure supplement forms.

Skip If: You have liver disease, peptic ulcers, or are pregnant/nursing without consulting a doctor. Also, if you are sensitive to 'niacin flush'.

Ingredients Analysis

Vitamin B3

500 mg

Niacin

500 mg NE

How to Use

Mix recommended serving size with water or a beverage. Start with a low dose to assess tolerance, especially due to potential niacin flush.

Frequency:

Daily

Best Time:

Anytime

When:

With food

Who Should Use This

Best For:

Individuals seeking general wellness support, those with specific B3 deficiencies, people looking for pure supplement forms.

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.