Vitamin B-12

Morbius wrote:dietary B12 intake and prostate cancer risk

A clinical study of me showed a 0.000000% risk of prostate cancer.

Have a nice day puffy Fat Boy!

Huh? wrote:

Jay Aitchsee wrote:Take an amount which will keep your serum level at 500-900 pg/mL.
500 mcg/day does it for me.
Reference

Thank you. I wonder if this is important enough to go to the trouble of a blood test? What are the side effects of oversupplementation?

I am thinking to cut it back to 500 mcg and leave it at that.

Only you know what is best for your body. I know for me when I don't take vitamin D I'm tired all day long. I was told in 2005 that I have a vitamin D deficiency and that it is common. My doctor told me she has it too. I know the b vitamins can and do add energy.

I was taking 1 pill of B-12 a day in 2014. But I didn't look at the bottle when I was taking it. It was 1,000 mcg. When I purchased a new bottle around Christmas it was 500 mcg. It took me a week to compare bottles. I was still taking 1 a day, but I was taking half of what I was taking. I noticed a difference in my body dropping down to 500 mcg a day. I went back up to 1,000 mcg by new year 2015. The issue for me is to remember to take all of my vitamins in the morning at 7am. If you feel a little lethargic with less mcg (if you do choose to lower the dosage) it could be due to the lowered dose.

I wouldn't worry about getting too much b-12 from a supplement. I read this "Vitamin B12 does not accumulate to toxic levels. Consuming large quantities does not cause side effects or high levels in your system, whether you get it through food or from taking high-dose supplements." You can read more at http://healthyeating.sfgate.com/high-vi ... -9057.html

So, Sandi Busch, Demand Media, B.A. in psychology says, don't worry about it (taking too much)

footballgirl13 wrote: http://healthyeating.sfgate.com/high-vi ... -9057.html

while the Mayo Clinic says, observe caution

http://www.mayoclinic.org/drugs-supplem ... b-20060243

Mmmm.

That Mayo Clinic link is interesting and helpful.

As for the dread diseases that Busch says underlie high B12, all of those would show up on the rest of the blood work and I have high B12 and my BW is fine. None of my doctors care about my high B12.

I don't supplement B vitamins despite the fact that pre-diabetes, Metformin, and long term ppi use are all risk factors for vitamin B depletion.

Why? Because my levels are on the high side in the normal range. High grain consumption interferes with vitamin B absorption, I eat no grains. I get plenty of B vitamins from meat, fish, and other whole food sources. I laugh every time someone at Kaiser gives me warnings that failure to eat lots of grains (which have to be fortified with B vitamins, btw) will cause B vitamin deficiencies. Meanwhile, every vegan I know has to supplement, DESPITE eating tons of grains. Hmmmm . . .

It's hard to say how much of a supplement is actually bio available, and how much a supplement REALLY contains. Best practice is to eat real, whole foods and minimize processed foods which may further decrease bio availability.

The Mayo clinic provided so much information, some contradictory, that I am not sure they said anything meaningful about B12.
I must admit that for a couple years I was talking 2500 Mcg of B12. I think I better check with my doctor and make sure i am not dead.

Jay Aitchsee wrote:So, Sandi Busch, Demand Media, B.A. in psychology says, don't worry about it (taking too much)

footballgirl13 wrote: http://healthyeating.sfgate.com/high-vi ... -9057.html

while the Mayo Clinic says, observe caution

http://www.mayoclinic.org/drugs-supplem ... b-20060243

Mmmm.

Are you just trying to scare people? Yes, it is in the link you provide, but all those cautions are related to people with health problems that are specified. And one of the cautions is a concern that you might not absorb enough of B-12 supplement you are taking.

bwexler wrote:I must admit that for a couple years I was talking 2500 Mcg of B12. I think I better check with my doctor and make sure i am not dead.

lol and thank you. If you find out you are dead, update the thread and I might cut back on my 2500 mcg daily dose.

Huh? wrote:Are you just trying to scare people? Yes, it is in the link you provide, but all those cautions are related to people with health problems that are specified. And one of the cautions is a concern that you might not absorb enough of B-12 supplement you are taking.

I stand by my first post in this thread:

Jay Aitchsee wrote:Take an amount which will keep your serum level at 500-900 pg/mL.
500 mcg/day does it for me.
Reference

Why in the world would you take more of anything than you needed (or something you didn't need) - especially without being aware of the cautions?

Jay Aitchsee wrote:Jay Aitchsee wrote:
Take an amount which will keep your serum level at 500-900 pg/mL.
500 mcg/day does it for me.
Reference

I don't think you understand that I am not going to run down to the doctor and ask for a blood test. I haven't seen him in 2.5 years and there are no future plans to see him.

Huh? wrote:

Jay Aitchsee wrote:Jay Aitchsee wrote:
Take an amount which will keep your serum level at 500-900 pg/mL.
500 mcg/day does it for me.
Reference

I don't think you understand that I am not going to run down to the doctor and ask for a blood test. I haven't seen him in 2.5 years and there are no future plans to see him.

Huh?

As an FYI, depending on the area you live in, you can order your own B-12 test without a doctor's authorization. As one who is very sensitive to supplements, I would not take that much B-12 without a lab test but obviously, you have to do what you think is best.

Huh? wrote:

Jay Aitchsee wrote:Jay Aitchsee wrote:
Take an amount which will keep your serum level at 500-900 pg/mL.
500 mcg/day does it for me.
Reference

I don't think you understand that I am not going to run down to the doctor and ask for a blood test. I haven't seen him in 2.5 years and there are no future plans to see him.

Hey Huh...Your health is your own business...Do what the hell you want!

Huh? wrote:I don't think you understand that I am not going to run down to the doctor and ask for a blood test. I haven't seen him in 2.5 years and there are no future plans to see him.

Then you really don't know if any of the cautions apply, do you?

Jay Aitchsee wrote:Then you really don't know if any of the cautions apply, do you?

Look at the conditions in the link you provided? Do you think if I see a doctor he is going to tell me which, if any, of those I have?

Do you think if he tests my blood and recommends B-12 supplementation, he is going to test me for even one of those conditions?

LSAT wrote:

What are you even doing here?

Vitamin B12 test, http://www.walkinlab.com/ , $32. (not in all states)