Product Reviews and Experiences for
NOW Foods Niacin, Sustained Release

Very Good
4,808 Ratings
4.30 / 5.00

Product Reviews

4767 Reviews
3194 Reviews
715 Reviews
334 Reviews
143 Reviews
381 Reviews

NOW Foods Supplements, Niacin (Vitamin B-3) 500 mg, Sustained Release, Nutritional Health, 250
New reviews during period from 01.11.2023 to 22.10.2024

Product Reviews

5 Stars
3222
4 Stars
720
3 Stars
336
2 Stars
144
1 Stars
386
Period from 2024-02-28 to 2024-10-06
| | Y | 2024-10-06
I feeling better
| | Decent, but still causes flush | 2024-10-05
Not bad, but these still occasionally cause a niacin flush. Even with eating a hearty meal ahead of time.
| | Be ready to flush | 2024-10-04
Great great great! Reliable product that will benefit you! Keep some applesauce handy if the niacin makes you flush. Don't be alarmed. It’s working.
| | SUSTAINED RELEASE DOES NOT WORK | 2024-09-21
I bought this because I can't handle the "FLUSHING" when taking Niacin. This Niacin is meant to be SUSTAINED RELEASE which means it releases a little Niacin at a time. This does not work like that it dumps the whole lot of 500 mg into your bloodstream. I had so much pain, almost overheated my system. So i took 1/5 tablet... no luck, same result. I bought another product from another maker and it worked much better, no flushing with the other (cheap) brand. Disappointed.
| | A good replacement for Abbott Labs NIASPAN that is no longer Available. | 2024-09-04
4 Stars for this product BUT 5 Stars for the Sustained release.
| | My rating | 2024-09-03
works very well
| | Causes crazy flushing! Dose way too high >$3,000% | 2024-08-27
Even when I take this after a full meal at dinner, it causes a crazy amount of flushing on my elbows, knees, neck, chest, tingly and itchy and hot. Not worth whatever it’s doing. Even when I only take it once a week…
| | Caused itching | 2024-08-20
I had itching all over my body! I took the whole pill but now I will taking half of it to see if will make a difference.
| | Severe flushing | 2024-08-18
I bought this to help with my cholesterol. I took it for almost 2 years. I was diagnosed with panic attacks because the doctor didn't realize I was taken niacin and the flushing was so severe. I would break out in hives and people would ask me if I had a sunburn. It felt like I was covered in ants and I would scratch until I bled. Once I realized it was the niacin, I started cutting them in half and taking them at night. It was fine for about five months and then the flushes started in the
| | Good | 2024-08-09
They are a good size, and you get a good amount. I'll get more
| | No flush | 2024-08-06
I was concerned about people’s comments about some flushing. I have had no flush with these time release 500 mg.
| | Excelente | 2024-07-29
Muy bueno
| | NOT minimal flushing as stated on the label. | 2024-07-28
I take SR Niacin to increase by good cholesterol and have one so for 6or 7 years. This is the first DR product that causes horrible flushing. I started taking at night to try to reduce the flushing, and now I wake up in the middle of the night with pins and needles in my face, neck and torso, as well as extremities. I won't buy this one again.
| | I feel this is working well. | 2024-07-25
I like this a lot and to stave off a flush I eat something first
| | Sustained release… | 2024-07-23
I take this at night so I sleep through the flushing. When I’ve taken it during the day time I get that flushing feeling that I hate.
| | Sustained release ftw re flushes! Thank you, NOW! | 2024-07-06
Ok so I did not realize how great these were until I got my prescription Niacin from the pharmacy. Now I'm thanking goddess that the pharma was out when I first went, and that I found these NOW supplements on the shelf. After trying one of the prescription ones, OH MY GOD I wanted to rip my skin off, I got flushed so bad it was pure misery!! By comparison, with these I often skip the flushing (knowing what to eat with it helps a lot so do your research) and when I do get the flushing
| | The worst | 2024-06-26
I have a lot of side effect Rash Itchy Red spot Hard breath and high Heartbeat
| | Rash | 2024-06-24
I took 2 other meds at the same time I startin this one, I got a rash all over my body, which was horrible. At first started to feel my body hot and then broke out in bumps everywhere, thinking it was the other pills. I continued this one. I then Stopped all my vitamins. Because I wanted to slowly bring them back gauging, what does what. So I started this one 2 days ago, and today I started to feel hot And slowly Began to Get a rash all over my body. I now know that this is the pill that caused
| | It says it’s slow release but… | 2024-06-21
This product still causes me to get flushed so bad that it feels like ants or needles all over my body. I’ve tried taking it during all different times of the day. With food, etc Maybe they’ll work for someone else but not for me. If this is slow release, to reduce flush, I’d sure be scared to try something that wasn’t!
| | Activated | 2024-06-20
I feel activated with this product. I do get a flush and it can be irritating but it is work firing up the brain and allowing this amino to do its job. I feel clear headed and better skin.
| | Makes you feel awful | 2024-06-14
My husband had extremely unpleasant experiences with taking this. Don’t recommend
| | Real niacin | 2024-06-13
This is real niacin, used by many for raising good cholesterol, not a non-flushing variety Its flushing when taken with meals is not severe at least to me.
| | Allergic reaction | 2024-06-02
Test one out. I had an allergic reaction where I heated up like a furnace. It was terrible. Like a surge of heat. Be careful
| | Sad … | 2024-05-28
I have very bad heartburn from these pills, but I can’t return the product according to Amazon rules;(
| | Terrible flushing | 2024-05-22
I tried another brand with no issues. This was actually scary to me. Made my face feel tingly and then hot. I thought i was having a stroke. Of course i know its a side effect of Niacin but since i had been taking it everyday for a month then switched to thr brand when i ran out, i didn't suspect that it would happen to me.
| | Added some umph to my day! | 2024-05-20
Niacin has been a noticeable add to my daily vitamin regimen. I missed it for a couple days and felt my energy depleted so apparently it makes a difference. At least so for me.
| | Works. | 2024-05-19
Works for me. I take half at a time. 4 to 6 times a day.
| | NOT SUSTAINED RELEASE TO MINIMIZE FLUSHING AS ADVERTISED | 2024-05-16
One pill flushes you like crazy after a few hours of taking it!
| | Severe reaction | 2024-05-10
This caused a severe reaction both to my skin and blood glucose levels. I am a T2 diabetic and when taking this it cause my blood sugar to sky rocket and not come down while taking just one tablet a day. ALSO, it cause severe burning sensation on my skin and a red rash all over my head, neck, chest and arms that lasted a couple of hours. This occurred several times while taking this and was not an isolated incident. It did not happen every time that I took one of these tablets, but it happened
| | You cannot take a whole pill | 2024-05-10
One pill is just too strong. I ended up biting off little pieces of a pill. If you are going to use them, get a pill slicer. They do work, but after that first pill, I had such a long bout of heat all over. I never wanted that again.
| | Great quality and easy on the stomach | 2024-05-03
This brand is high quality and easy to swallow tablet. Would recommend this product and brand!
| | be careful of Niacin flush | 2024-05-01
thought these would be healthy for cardiovascular health, cholesterol health but little did I know I got severe Niacin flush, which means my skin was on fire, chest, neck, back, arms, ears--which led me to the emergency room. They gave me Benadryl and all was better very quickly--great vitamin, just be careful of Niacin flush--read side effects b4 purchase--
| | These cause flushing shortly after taking them | 2024-04-29
I decided to try this brand instead of the usual slow release Niacin I had taken previously. I had never experienced flushing with my other brand, so when I was laying in bed the first night after taking one of these and I suddenly got hot, my skin started itching and felt like it was on fire, I rushed to the mirror to see my skin was visibly red. After some quick searching I figured out that in theory it's no big deal, but that discomfort lasts for quite a while. For extended release pills,
| | You flush | 2024-04-28
It causes you to flush
| | Cause horrible flush feeling | 2024-04-27
My husband took once, created horrible flesh feeling he could hardly stand it. It lasted well over an hour. Look like he had a horrible sunburn.
| | Good value | 2024-04-27
Good value fast shipping
| | NIacin | 2024-04-27
These pills caused both me and husband to breakout in red rashes, the rash eventually went away but was annoying. We stopped taking them.
| | Nice Niacin Supplement | 2024-04-19
These Niacin pills seem to work well. Easy to swallow, good quality. Happy with purchase...
| | Not Flush Free | 2024-04-18
It is not flush free. It cause me to have a rash from head to toe.
| | So far, so good | 2024-04-18
I think these are working for the intended purpose but hard to say within the first couple weeks of usage. This is a sustained release to minimize flushing but I was kind of hoping to feel that side effect a little as I was curious but I haven't felt a thing. I guess that's better than the opposite where some people turn bright red or something like that. I don't have a problem swallowing these but they're one of those chalky non coated types of surfaces so if you have
| | Not sustained release | 2024-04-15
The formulation seems to have changed. The last two bottles of this supplement have not been sustained release, and it's too late to return them. The flush and all-body itching are unpleasant!
| | I should have done more research | 2024-04-05
I can’t claim this product is trash because there are tons of good reviews. However, if you are reading the reviews, like I did, and read about the flushing, be warned. I thought, oh what could a little flushing harm …… nope, I took it only once 3 days ago and I still have some skin irritation. I woke up, the morning after, in full body hives and felt like my body was on fire! Just be cautious.
| | It gave me HOT FLUSHES & HIVES all over my body after 15 minutes and it lasted 20-30 MINHORRIBLE! | 2024-04-01
READ the LABEL! It does say that it gives HOT FLUSHES. It's called the "niacin flush". It's not dangerous but if you don't know what happens when it happens, you think that something is seriously wrong. I wouldn't be surprised if some people would call 911 for help. Do your research first before you take NIACIN. Symptoms of a niacin flush can include a warming of the cheeks, prickliness in the extremities and mild lightheadedness similar to what is experienced by
| | Sustained release, Flushing | 2024-04-01
My wife and I, and anyone brave enough to try these tablets gets MAJOR flushed. Not as advertised.
| | Good stuff, but don’t let the slow release fool you | 2024-03-25
Great stuff and I love the flush! Don’t let the slow release fool you, it may delay the flush, but once it hits! Wow! Love it.
| | Works But Read the Label!! | 2024-03-15
If your skin feels like its on fire read the Flushing warning. Works great. I always thought these were prescription only?
| | Can’t take them | 2024-03-14
It says they are extended release to reduce the flush. It sure does you flush a long time. I need to sleep with these I can’t
| | Good value | 2024-03-10
Better price than elsewhere for similar product
| | Beware using. | 2024-02-29
I have taken niacin supplements with no problems in the past. I wanted to try these, thought they would be a good way to start again. I received them, took one tablet each night before bedtime with no ill effects the first three nights I took them. The fourth night, I took one before bedtime, but awoke about 2 hours later on fire. I literally felt like I was in a tanning bed and had been there for far too long. I got up, went into a room with a light an mirror and I was as red as I've ever
| | Caused flushing | 2024-02-29
I get horrible flushing when I take this but my husband has no reaction whatsoever. I continued taking it as your body is supposed to get used to it, but I had the opposite reaction. The last time I took it, the redness and burning lasted hours, and I’m talking HOT PINK.
| | Great/I use it at night. | 2024-02-28
I use it at night for the flush and it’s really great.
Period from 2024-02-03 to 2024-10-06
| | Y | 2024-10-06
I feeling better
| | Be ready to flush | 2024-10-04
Great great great! Reliable product that will benefit you! Keep some applesauce handy if the niacin makes you flush. Don't be alarmed. It’s working.
| | My rating | 2024-09-03
works very well
| | Good | 2024-08-09
They are a good size, and you get a good amount. I'll get more
| | No flush | 2024-08-06
I was concerned about people’s comments about some flushing. I have had no flush with these time release 500 mg.
| | Excelente | 2024-07-29
Muy bueno
| | I feel this is working well. | 2024-07-25
I like this a lot and to stave off a flush I eat something first
| | Sustained release ftw re flushes! Thank you, NOW! | 2024-07-06
Ok so I did not realize how great these were until I got my prescription Niacin from the pharmacy. Now I'm thanking goddess that the pharma was out when I first went, and that I found these NOW supplements on the shelf. After trying one of the prescription ones, OH MY GOD I wanted to rip my skin off, I got flushed so bad it was pure misery!! By comparison, with these I often skip the flushing (knowing what to eat with it helps a lot so do your research) and when I do get the flushing
| | Activated | 2024-06-20
I feel activated with this product. I do get a flush and it can be irritating but it is work firing up the brain and allowing this amino to do its job. I feel clear headed and better skin.
| | Added some umph to my day! | 2024-05-20
Niacin has been a noticeable add to my daily vitamin regimen. I missed it for a couple days and felt my energy depleted so apparently it makes a difference. At least so for me.
| | Works. | 2024-05-19
Works for me. I take half at a time. 4 to 6 times a day.
| | Great quality and easy on the stomach | 2024-05-03
This brand is high quality and easy to swallow tablet. Would recommend this product and brand!
| | Good value | 2024-04-27
Good value fast shipping
| | Nice Niacin Supplement | 2024-04-19
These Niacin pills seem to work well. Easy to swallow, good quality. Happy with purchase...
| | So far, so good | 2024-04-18
I think these are working for the intended purpose but hard to say within the first couple weeks of usage. This is a sustained release to minimize flushing but I was kind of hoping to feel that side effect a little as I was curious but I haven't felt a thing. I guess that's better than the opposite where some people turn bright red or something like that. I don't have a problem swallowing these but they're one of those chalky non coated types of surfaces so if you have
| | Good stuff, but don’t let the slow release fool you | 2024-03-25
Great stuff and I love the flush! Don’t let the slow release fool you, it may delay the flush, but once it hits! Wow! Love it.
| | Works But Read the Label!! | 2024-03-15
If your skin feels like its on fire read the Flushing warning. Works great. I always thought these were prescription only?
| | Good value | 2024-03-10
Better price than elsewhere for similar product
| | Great/I use it at night. | 2024-02-28
I use it at night for the flush and it’s really great.
| | Works! | 2024-02-26
Had some occasional flushing but knew it was working!
| | Niacin. | 2024-02-25
Please check before taking…. When I was younger I had to take it, so I thought it might help me now…. Wrong it did not help this time…. Found someone in family that could use it.. so turned out ok! Just check with Doctor, don’t try doctoring your self…. Ha ha
| | Vitamins | 2024-02-17
Good product company.
| | Excellent seller. Item as described | 2024-02-12
Excellent seller. Item as described
| | Niacin-supplement | 2024-02-08
Very good
| | Niacin b3 | 2024-02-03
Excelente neurotropa para fortalecer tu cerebro
Period from 2023-12-22 to 2024-09-04
| | A good replacement for Abbott Labs NIASPAN that is no longer Available. | 2024-09-04
4 Stars for this product BUT 5 Stars for the Sustained release.
| | Caused itching | 2024-08-20
I had itching all over my body! I took the whole pill but now I will taking half of it to see if will make a difference.
| | Real niacin | 2024-06-13
This is real niacin, used by many for raising good cholesterol, not a non-flushing variety Its flushing when taken with meals is not severe at least to me.
| | Know the right amount to take… | 2024-02-26
I was having issues with my lips being chapped and burning. I did some research and found that this fixes that issue. However the bottle states to take one a day but I found that it makes me break out in hives if it’s too much for your body. So I went to every other day of taking it or even a half a pill. It works great and seems to do what it’s suppose to but everyone is different so be aware. Great product.
| | Niacin review | 2024-01-12
The only issue for me and family was that it caused us to have flushing symptoms when it's not suppose it cause it a lot, we feel it somewhat (never felt this from our last niacin product cause it was flush free) but other than that it's okay.
| | Helps | 2023-12-22
Not flush free.
Period from 2024-06-21 to 2024-10-05
| | Decent, but still causes flush | 2024-10-05
Not bad, but these still occasionally cause a niacin flush. Even with eating a hearty meal ahead of time.
| | Sustained release… | 2024-07-23
I take this at night so I sleep through the flushing. When I’ve taken it during the day time I get that flushing feeling that I hate.
| | It says it’s slow release but… | 2024-06-21
This product still causes me to get flushed so bad that it feels like ants or needles all over my body. I’ve tried taking it during all different times of the day. With food, etc Maybe they’ll work for someone else but not for me. If this is slow release, to reduce flush, I’d sure be scared to try something that wasn’t!
Period from 2024-05-28 to 2024-08-18
| | Severe flushing | 2024-08-18
I bought this to help with my cholesterol. I took it for almost 2 years. I was diagnosed with panic attacks because the doctor didn't realize I was taken niacin and the flushing was so severe. I would break out in hives and people would ask me if I had a sunburn. It felt like I was covered in ants and I would scratch until I bled. Once I realized it was the niacin, I started cutting them in half and taking them at night. It was fine for about five months and then the flushes started in the
| | Sad … | 2024-05-28
I have very bad heartburn from these pills, but I can’t return the product according to Amazon rules;(
Period from 2024-06-26 to 2024-09-21
| | SUSTAINED RELEASE DOES NOT WORK | 2024-09-21
I bought this because I can't handle the "FLUSHING" when taking Niacin. This Niacin is meant to be SUSTAINED RELEASE which means it releases a little Niacin at a time. This does not work like that it dumps the whole lot of 500 mg into your bloodstream. I had so much pain, almost overheated my system. So i took 1/5 tablet... no luck, same result. I bought another product from another maker and it worked much better, no flushing with the other (cheap) brand. Disappointed.
| | Causes crazy flushing! Dose way too high >$3,000% | 2024-08-27
Even when I take this after a full meal at dinner, it causes a crazy amount of flushing on my elbows, knees, neck, chest, tingly and itchy and hot. Not worth whatever it’s doing. Even when I only take it once a week…
| | NOT minimal flushing as stated on the label. | 2024-07-28
I take SR Niacin to increase by good cholesterol and have one so for 6or 7 years. This is the first DR product that causes horrible flushing. I started taking at night to try to reduce the flushing, and now I wake up in the middle of the night with pins and needles in my face, neck and torso, as well as extremities. I won't buy this one again.
| | The worst | 2024-06-26
I have a lot of side effect Rash Itchy Red spot Hard breath and high Heartbeat

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Product Information


NOW Foods Niacin, Sustained Release
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
Categorie(s):
Drugstore Products & Healthcare

Last Update: 2024-10-10

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