Thread: Vitamin B-3 * niacin*
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09-23-2005, 09:33 PM #1Member
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Vitamin B-3 * niacin*
Ok im wondering if you can injest to much niacin?, is 3 grams a day to much?
Because i love the feeling i get from it escpecially when working out
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09-23-2005, 09:39 PM #2
It's alot but will not kill you....
Toxicity
Niacin toxicity is rarely observed at doses generally consumed. Administration of pharmacological doses of nicotinic acid (1-2 g three times a day) is used in treatment of high blood cholesterol. At this level of intake, histamine release may be triggered resulting in flushing of the skin which can be harmful to patients with asthma or peptic ulcer disease. Niacin also promotes hepatic toxicity when consumed at high doses found in some supplements.
The upper limit of safety for niacin established by the Food and Nutrition Board of the Institute of Medicine is 35 mg daily for adults. Niacin Tolerable Upper Intake Levels
Life Stage Niacin(mg)
Infants
0-6 months N/A
7-12 months N/A
Children
1-3 years 10
4-8 years 15
Males, Females
9-13 years 20
14-18 years 30
19-70 years 35
> 70 years 35
Pregnancy
< 18 years 30
19-50 years 35
Lactation
< 18 years 30
19-50 years 35
Requirements
The Daily Reference Intakes (DRI) for niacin are shown in the table below.
Life Stage Niacin (mg)
Infants
0-6 months 2
7-12 months 4
Children
1-3 years 6
4-8 years 8
Males
9-13 years 12
14-18 years 16
19-30 years 16
31-50 years 16
51-70 years 16
> 70 years 16
Females
9-13 years 12
14-18 years 14
19-30 years 14
31-50 years 14
51-70 years 14
> 70 14
Pregnancy
< 18 years 18
19-30 years 18
31-50 years 18
Lactation
> 18 years 17
19-30 years 17
31-50 years 17
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09-23-2005, 09:44 PM #3Member
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well i absolutly love the flush feeling, i know im strange but i really like it ill try to keep it at 1 gram a day and i should be fine right?
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09-23-2005, 09:53 PM #4Originally Posted by elite2kr
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09-24-2005, 08:16 AM #5Member
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Originally Posted by TheMudMan
it takes at least 500mg for me to get a pump
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09-24-2005, 09:07 AM #6
i took a 500mg cap (the flush kind) it was horrible! Never again!
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09-24-2005, 09:43 AM #7
"flushing kind"..?
Thanks
dv
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09-24-2005, 09:47 AM #8Originally Posted by dirtyvegas
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09-24-2005, 10:28 AM #9
And the purpose for flushing kind is to get a pump, right.?
dv
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09-24-2005, 11:26 AM #10
bizzump^^^^^^^^^^^^^^^^^
dv
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09-24-2005, 12:54 PM #11Originally Posted by dirtyvegas
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09-24-2005, 01:13 PM #12Anabolic Member
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are there any other purposes for megadosing b-3
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09-24-2005, 01:16 PM #13Originally Posted by TheMudMan
@stupidhippi no i dont think so seems pretty much it, just a good pump with lots of blotchy skin and itching,,LoL.
dv
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09-24-2005, 01:21 PM #14
I use B-3 to help boost HDL levels. If you start with a low dose (100 mg) and work up slowly you can minimize the flush. I have read some reports that indicate reg B-3 (the flushing kind) is more effective for hdl levels, but this could be just opinion. I take 1,000 mg / day split into 2 500 doses. Another hint - if you want to minimize the flush - take (1) std (325mg) aspirin 1/2 hour before the b-3.
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09-24-2005, 04:58 PM #15Anabolic Member
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Originally Posted by CapnZ
...*edit* Nevermind, I just saw your first sentence.
I actually did this the other day thinking the same thing about the vascularity. I split a 250 mg tab in half and took it with some NO2. I noticed it within 15 minutes...Pretty cool stuff.
fLLast edited by fLgAtOr; 09-25-2005 at 01:09 AM.
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09-24-2005, 09:50 PM #16
Niacin is one of the few drugs that can actually raise HDL - most other cholesterol drugs just lower LDL. In my case I have genetically low HDL, so I take 500mg of niacin at night and 500mg of non-flushing niacin in the morning. There's some debate about which type of niacin is best for raising HDL. Most doctors believe that the flushing type is more effective. As CapnZ mentioned, taking aspirin before the niacin will reduce the flushing.
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