---
product_id: 2562981
title: "Supplements, Niacin (Vitamin B-3) 500 mg, Sustained Release, Nutritional Health, 250 Tablets"
brand: "now foods"
price: "€ 27.20"
currency: EUR
in_stock: true
reviews_count: 8
category: "Now Foods"
url: https://www.desertcart.pt/products/2562981-supplements-niacin-vitamin-b-3-500-mg-sustained-release-nutritional
store_origin: PT
region: Portugal
---

# Kosher, vegan & allergen-free 500 mg sustained release dose Made in USA, family-owned since 1968 Supplements, Niacin (Vitamin B-3) 500 mg, Sustained Release, Nutritional Health, 250 Tablets

**Brand:** now foods
**Price:** € 27.20
**Availability:** ✅ In Stock

## Summary

> 💥 Elevate your wellness game with NOW Niacin—powerful, pure, and flush-friendly!

## Quick Answers

- **What is this?** Supplements, Niacin (Vitamin B-3) 500 mg, Sustained Release, Nutritional Health, 250 Tablets by now foods
- **How much does it cost?** € 27.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/2562981-supplements-niacin-vitamin-b-3-500-mg-sustained-release-nutritional)

## Best For

- now foods enthusiasts

## Why This Product

- Trusted now foods brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Heritage:** Crafted by a family-owned USA brand since 1968, ensuring quality you can rely on.
- • **Clean & Conscious:** Vegan, kosher, and allergen-free formula fits your mindful lifestyle.
- • **Daily Energy Boost:** Supports nerve health and energy metabolism for your busy professional grind.
- • **Smart Supplementing:** Designed to minimize flushing—take with meals and stay consistent to feel your best.
- • **Sustained Release Power:** 500 mg Niacin delivers steady vitamin B3 support without the harsh flush.

## Overview

NOW Foods Niacin 500 mg sustained release tablets provide a potent, steady dose of essential Vitamin B3 to support energy metabolism and nerve health. Packaged in the USA by a trusted family-owned company since 1968, this vegan, kosher, and allergen-free supplement is designed to minimize flushing symptoms when taken daily with food. Ideal for health-conscious professionals seeking reliable, high-quality nutritional support.

## Description

Product Description Niacin (Vitamin B-3) is an essential B-group vitamin necessary for good health. Natural color variation may occur in this product. Take 1 tablet daily with a meal. This high potency tablet should be taken under doctor's supervision. Brand Story By

Review: Excellent Niacin. Step up to 500mg or higher in stages to avoid flush. Take aspirin avoid the flush - This was my 2nd order of this excellent Niacin. I'm now taking 2,600mg per day. This quality Niacin does provide a LITE FLUSH but it is manageable. There are 2 SECRETS to using Niacin without being hammered by a heavy flush. 1) I take 325mg of Enteric (coated) Aspirin per day because I had open heart surgery 5 years ago. However taking 81mg of Coated aspirin like my wife does is the first secret to avoiding the heavy flush from Niacin. Take COATED (aka Enteric) aspirin per day which will help with your heart problems or avoid heart problems. A few hours later take your Niacin in STAGES. For example, I take 1,000mg of Niacin in the morning and later in the afternoon with food I'll take 1,500mg. 2) Start taking Niacin by taking only 100mg or 200mg WITH FOOD. Next, step up to 500mg after a week or so. Then higher as necessary in stages. DON'T JUST JUMP IN WITH 500MG OR HIGHER. You may get a flush and results that will make you feel bad. Your body has to get use to Niacin in stages just like any other medicine. I've used this brand of Niacin for over a year and my blood test results have been highly rewarding. Shipping was fast and the price is reasonable.
Review: Learn From Me! - I should have done more research before I took this high of a dose. My error not Now Foods!!! I did have the side effect of flushing. What I didn't know was exactly what that meant besides turning red. My side effect at this high of a dose was very extreme. Again NOT the error of Now Foods!!! They put warnings on the bottle. The first thing I felt within about 30 to 60 minutes after I took it was a burning sensation on my face that grew to be painful. That sensation spread down my neck to my entire body. I could not see myself but my husband became very alarmed at the severe "red" I became. When I went into the bathroom (we were at a restaurant) I looked like I had a severe sunburn and it very much felt like it too. The pain and burning sensation remained on the surface of my skin. Anyone who has had a really bad sunburn will know the pain is constant and uncomfortable to say the least. I felt swollen and my husband said I looked a little swollen. The sensation finally reached a plateau and I thought it was over and decreasing but about and hour later I had about 5-10 minutes of it building again then it stopped. It took several hours (3-5) before it finally calmed down and then I was exhausted. My concern then was wondering if I did something to my liver. I slept for 12 hrs that night and awoke the next day feeling a lot better. 48 hours later I felt completely back to normal. This "mistake" was completely my own!!! I should have done my research better. My current research showed doses at 16-18 mgs for adult and ALL Niacin supplements need to be approved by a doctor. For people who need a higher dose they take other meds to help with the side effects. Please learn form me and consult your doctor before taking this supplement!

## Features

- Niacin (Vitamin B-3) is an essential B-group vitamin necessary for good health
- Niacin supplements may sometimes temporarily cause flushing and/or itching, but this sustained release tablet should minimize those symptoms
- To further limit these uncomfortable but not dangerous symptoms, take daily and avoid missing doses
- Take 1 tablet daily with a meal
- Packaged in the USA by a family owned and operated company since 1968

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00028LV8K |
| Age Range Description | Adult |
| Allergen Information | Allergen-Free |
| Best Sellers Rank | #18,687 in Health & Household ( See Top 100 in Health & Household ) #25 in Vitamin B3 (Niacin) Supplements #1,681 in Sales & Deals |
| Brand | NOW Foods |
| Brand Name | NOW Foods |
| Color | Off White |
| Customer Reviews | 4.3 out of 5 stars 4,729 Reviews |
| Diet Type | Kosher, Vegan, Vegetarian |
| Dosage Form | 500 |
| Flavor | Unflavored |
| Global Trade Identification Number | 00733739004826 |
| Item Dimensions | 2.7 x 2.7 x 4.75 inches |
| Item Form | Tablet |
| Item Weight | 0.53 Pounds |
| Manufacturer | NOW Sports - Nutrition and Wellness |
| Model Name | Niacin (Vitamin B-3) 500 mg, Sustained Release, Nutritional Health, Tablets |
| Number of Items | 1 |
| Primary Supplement Type | Vitamin B3 |
| Product Benefits | Energy Management |
| Specific Uses For Product | Nerve |
| UPC | 733739004826 |
| Unit Count | 250 Count |

## Product Details

- **Brand:** NOW Foods
- **Diet Type:** Kosher, Vegan, Vegetarian
- **Flavor:** Unflavored
- **Item Form:** Tablet
- **Primary Supplement Type:** Vitamin B3

## Images

![Supplements, Niacin (Vitamin B-3) 500 mg, Sustained Release, Nutritional Health, 250 Tablets - Image 1](https://m.media-amazon.com/images/I/71TpdKB+hBL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What kind of niacin is this? niacinamide? nicotinamide? nicotinic acid? inositol hexaniacinate?**
A: Pure nicotinic acid. May cause flushing. I used it for my cholesterol/triglyceride problem.

**Q: Im confused is this flush free? Flush free is a waste of time and money and ineffective.**
A: The flush is moderate compared with other brands I have tried.   Last night I took my daily 2000 mg all at once instead of broken up during the day, and got a strong flush similar to the flush I get from 1000mg of Twinlabs, for example.

**Q: Can these be broken in half easily?**
A: No: these are capsules and cannot be broken in half!

**Q: What's the difference between niacin and niacinamide ?**
A: Both niacin (nicotinic acid) and niacinamide (or nicotinamide) have a pyridine ring (an aromatic ring with a single N for C substitution) with a functional at the meta (3) position. The acid functional of the niacin is replaced by and amide functional in niacinamide. Both are considered B3 vitamins, with some minor pharmacological differences.  The main pharmacological difference being that the amide reduces the likelihood and intensity of the flushing associated with niacin.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Niacin. Step up to 500mg or higher in stages to avoid flush. Take aspirin avoid the flush
*by S***S on March 9, 2025*

This was my 2nd order of this excellent Niacin. I'm now taking 2,600mg per day. This quality Niacin does provide a LITE FLUSH but it is manageable. There are 2 SECRETS to using Niacin without being hammered by a heavy flush. 1) I take 325mg of Enteric (coated) Aspirin per day because I had open heart surgery 5 years ago. However taking 81mg of Coated aspirin like my wife does is the first secret to avoiding the heavy flush from Niacin. Take COATED (aka Enteric) aspirin per day which will help with your heart problems or avoid heart problems. A few hours later take your Niacin in STAGES. For example, I take 1,000mg of Niacin in the morning and later in the afternoon with food I'll take 1,500mg. 2) Start taking Niacin by taking only 100mg or 200mg WITH FOOD. Next, step up to 500mg after a week or so. Then higher as necessary in stages. DON'T JUST JUMP IN WITH 500MG OR HIGHER. You may get a flush and results that will make you feel bad. Your body has to get use to Niacin in stages just like any other medicine. I've used this brand of Niacin for over a year and my blood test results have been highly rewarding. Shipping was fast and the price is reasonable.

### ⭐⭐⭐⭐⭐ Learn From Me!
*by K***M on July 14, 2016*

I should have done more research before I took this high of a dose. My error not Now Foods!!! I did have the side effect of flushing. What I didn't know was exactly what that meant besides turning red. My side effect at this high of a dose was very extreme. Again NOT the error of Now Foods!!! They put warnings on the bottle. The first thing I felt within about 30 to 60 minutes after I took it was a burning sensation on my face that grew to be painful. That sensation spread down my neck to my entire body. I could not see myself but my husband became very alarmed at the severe "red" I became. When I went into the bathroom (we were at a restaurant) I looked like I had a severe sunburn and it very much felt like it too. The pain and burning sensation remained on the surface of my skin. Anyone who has had a really bad sunburn will know the pain is constant and uncomfortable to say the least. I felt swollen and my husband said I looked a little swollen. The sensation finally reached a plateau and I thought it was over and decreasing but about and hour later I had about 5-10 minutes of it building again then it stopped. It took several hours (3-5) before it finally calmed down and then I was exhausted. My concern then was wondering if I did something to my liver. I slept for 12 hrs that night and awoke the next day feeling a lot better. 48 hours later I felt completely back to normal. This "mistake" was completely my own!!! I should have done my research better. My current research showed doses at 16-18 mgs for adult and ALL Niacin supplements need to be approved by a doctor. For people who need a higher dose they take other meds to help with the side effects. Please learn form me and consult your doctor before taking this supplement!

### ⭐⭐⭐⭐ More than a flushed feeling.
*by C***K on October 26, 2025*

Omgosh! My body is on fire! Took my first dose an hour ago and I can’t see myself ever again taking it. I’m quite miserable. I’d rather take the cholesterol Rx.

## Frequently Bought Together

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-29*