Vitamins

Dtp79

Is it wrong to take too much vitamin c or any vitiman for instance. I take 1000 mg rubex plus centrum in the morning which means I'm taking 250% RDA. I take glucosamine too so I'm probably over my RDA on a few others too. Is this dangerous?

quinevere

Dtp79 wrote: »

Is it wrong to take too much vitamin c or any vitiman for instance. I take 1000 mg rubex plus centrum in the morning which means I'm taking 250% RDA. I take glucosamine too so I'm probably over my RDA on a few others too. Is this dangerous?

B-complex vitamins and vitamin C are water-soluble vitamins that are not stored in the body and must be replaced each day.


For adults, the recommended dietary reference intake for vitamin C is 65 to 90 milligrams (mg) a day, and the upper limit is 2,000 mg a day. Although too much dietary vitamin C is unlikely to be harmful, megadoses of vitamin C supplements may cause:

Diarrhea
Nausea
Vomiting
Heartburn
Abdominal bloating and cramps
Headache
Insomnia
Kidney stones

Dtp79

quinevere wrote: »

B-complex vitamins and vitamin C are water-soluble vitamins that are not stored in the body and must be replaced each day.


For adults, the recommended dietary reference intake for vitamin C is 65 to 90 milligrams (mg) a day, and the upper limit is 2,000 mg a day. Although too much dietary vitamin C is unlikely to be harmful, megadoses of vitamin C supplements may cause:

Diarrhea
Nausea
Vomiting
Heartburn
Abdominal bloating and cramps
Headache
Insomnia
Kidney stones

So taking rubex and centrum is bad ?

curry_person

no its totally fine its good to get lots of vitamin c, RDA are only what you need to prevent disease, which means when you get 100% of your vitamin c RDA your unlikely to get scurvy, but on other hand you need a lot more then RDA to get vitamin C's other benefits such as immune system etc you could take 2000mg a day without worrying about any effects so don't worry.

Dtp79

curry_person wrote: »

no its totally fine its good to get lots of vitamin c, RDA are only what you need to prevent disease, which means when you get 100% of your vitamin c RDA your unlikely to get scurvy, but on other hand you need a lot more then RDA to get vitamin C's other benefits such as immune system etc you could take 2000mg a day without worrying about any effects so don't worry.

Thanks for that. Would that be e the same for other ones like vitamin d?

curry_person

most vitamins are very well tolerated people can take up 4000 i.u of vitamin D i wouldnt worry too much about overdosing on vitamins.

Dtp79

curry_person wrote: »

most vitamins are very well tolerated people can take up 4000 i.u of vitamin D i wouldnt worry too much about overdosing on vitamins.

Cheers thanks

JJayoo

I take 3000mg of vit c per day and have often taken up to 15000mg if I was in contact with people that have the flu. If i die from Vit c overdose I will let you know.

Dtp79

JJayoo wrote: »

I take 3000mg of vit c per day and have often taken up to 15000mg if I was in contact with people that have the flu. If i die from Vit c overdose I will let you know.

U junkie

kumate_champ07

I take on average 2000mg a day, RDA's are silly anyway


worth a read
http://en.wikipedia.org/wiki/Vitamin_C_megadosage

JJayoo

http://www.vitamincfoundation.org/

This is a good watch. Amazing the lengths the hospital went to in order to stop the family from trying high does of vit C.

https://www.youtube.com/watch?v=VrhkoFcOMII

Dtp79

JJayoo wrote: »

http://www.vitamincfoundation.org/

This is a good watch. Amazing the lengths the hospital went to in order to stop the family from trying high does of vit C.

https://www.youtube.com/watch?v=VrhkoFcOMII

That was interesting

Danny_Lennon

Dtp79 wrote: »

Thanks for that. Would that be e the same for other ones like vitamin d?

As mentioned already, the water-soluble vitamins (i.e. vit C) are not going to cause severe problems with mega-dosing.

Mega doses of the fat-soluble vits (e.g. A, D, E) and some minerals may be a problem if you're taking in a lot of supps or combining supplementation with eating something like liver.

Saying that, it seems that you can probably supplement with vitamin D at much higher levels than currently suggested by the dietary reference intake, without much of a problem. As an estimate I'd say 5000 IU/d will be fine for most people in winter and then just supplement according to your own sun exposure in summer. However, it would be best to base your supp off of a blood test.

Tbh, I don't really like multi-vits. They contain a lot that we don't need and most of the important ones are only present at insignificant levels. Best approach is really to eat a nutrient-dense diet and perhaps supplement with some micronutrients that are going to be hard to get enough of. Things like vitamin D, vitamin K2, selenium, iodine, and perhaps a cod liver oil supp for vitamin A is you don't eat any liver.

If you do wanna go down the multi-vit route and you're male you might want to use a multi-vit with no iron as iron storage can be a problem. Additionally, folic acid is not something I would want to be taking in either.

Basically, eat nutrient-dense food and only supp if you feel you're missing out on something.

Dtp79

Danny_Lennon wrote: »

As mentioned already, the water-soluble vitamins (i.e. vit C) are not going to cause severe problems with mega-dosing.

Mega doses of the fat-soluble vits (e.g. A, D, E) and some minerals may be a problem if you're taking in a lot of supps or combining supplementation with eating something like liver.

Saying that, it seems that you can probably supplement with vitamin D at much higher levels than currently suggested by the dietary reference intake, without much of a problem. As an estimate I'd say 5000 IU/d will be fine for most people in winter and then just supplement according to your own sun exposure in summer. However, it would be best to base your supp off of a blood test.

Tbh, I don't really like multi-vits. They contain a lot that we don't need and most of the important ones are only present at insignificant levels. Best approach is really to eat a nutrient-dense diet and perhaps supplement with some micronutrients that are going to be hard to get enough of. Things like vitamin D, vitamin K2, selenium, iodine, and perhaps a cod liver oil supp for vitamin A is you don't eat any liver.

If you do wanna go down the multi-vit route and you're male you might want to use a multi-vit with no iron as iron storage can be a problem. Additionally, folic acid is not something I would want to be taking in either.

Basically, eat nutrient-dense food and only supp if you feel you're missing out on something.

Sound thanks

JJayoo

http://www.bbc.co.uk/news/health-22614522

"Vitamin C can kill multidrug-resistant TB in the lab, scientists have found.

The surprise discovery may point to a new way of tackling this increasingly hard-to-treat infection, the US study authors from Yeshiva University say in Nature Communications.

An estimated 650,000 people worldwide have multidrug-resistant TB.

Studies are now needed to see if a treatment that works using the same action as vitamin C would be useful as a TB drug in humans."

--Kaiser--

curry_person wrote: »

most vitamins are very well tolerated people can take up 4000 i.u of vitamin D i wouldnt worry too much about overdosing on vitamins.

You can get 10,000 IU of Vit D lying out in the sun for 15 mins. Seeing as I might do this for an hour or more, you can definitely take a lot more than 4,000

Danny_Lennon

--Kaiser-- wrote: »

You can get 10,000 IU of Vit D lying out in the sun for 15 mins. Seeing as I might do this for an hour or more, you can definitely take a lot more than 4,000

Yeah the very lowest dosage I've seen reported in the literature as having an adverse effect was 20,000 IU. These people may have been hyper-responders also so even that level may be safe for short periods of time.