How much B12 do we need?!
Answers: about 1.5ug per day
In order to meet your needs, you should take a daily vitamin B12 supplement of 5-10 micrograms or a weekly vitamin B12 supplement of 200 micrograms.
The RDA for adults for vitamin B12 is 2.4 micrograms daily
Vitamin B12 is needed for cell division and blood formation. Vitamin B12 is found in liver, kidney, yogurt, dairy products, fish, clams, oysters, nonfat dry milk, salmon, sardines. Thus, vegans need to look to fortified foods or supplements to get vitamin B12 in their diet. Although recommendations for vitamin B12 are very small, a vitamin B12 deficiency is a very serious problem leading ultimately to anemia and irreversible nerve damage.
one more than B11
I don't know, but be careful, because when i was young they gave me too much B12 and i broke out in this reddish splotchy rash thing that covered my whole body and made me really, really really hot, like i was on fire. Not fun.
6 micro grams is 100% of your b-12.
Lifestyle risks other than your heavy metal load. Meat or other animal products and refined carbohydrates (sugars) when used generously may more than double B12 needs persons who use drugs (eg Losec), chemicals, or beverages which destroy or remove B12 (e.g., tobacco, alcohol, caffeine, laxatives, etc.) egg albumin and egg yolk decrease B12 absorption
heavy metals present in food decrease dietary uptake a lack of calcium in food may decrease dietary uptake intestinal disorders or surgery affecting the intestines washing, cooking and light exposure of food containing B12
[adapted from; Thrash & Thrash, "NUTRITION FOR VEGETARIANS", 1982, "Heavy Metal Bulletin" Vol 2, Iss 3, Dec 1995 and Thorsons "Complete Guide To Vitamins and Minerals"] *B12 detoxifies cyanide in food and also tobacco smoke"
One more possible reason that vegans might need less B12:
"the greater quantities of fiber consumed by vegetarians tend to promote the settlement of bacteria in the lower areas of the small intestine and hence also the production of B12 in this region." http://www.veganforum.com/forums/sho...i...
And another one:
"The author contends that animal and dairy produce is a poor source of Vitamin B12 since the vitamin is contained in nutrient-deranged foodstuffs which will inevitably destroy the usability of the vitamin. Studies show that those following a typical animal-based diet require more vitamin B12 than those who do not. This is because the typical diet leads to digestive atrophy. Because B12 is peptide-bound in animal products and must be enzymatically cleaved from the peptide bonds to be absorbed, a weakened gastric acid and gastric enzyme secretions (due to a cooked food diet) causes an inability to efficiently extract vitamin B12 from external food. Nevertheless, raw food vegans who have a more powerful digestion actually get more B12 by reabsorption from the bile than they do from external food."
The National Institute of Health has outlined how much vitamin B-12 is recommend. Visit there following Web page for a table to see how much B-12 you need.
http://ods.od.nih.gov/factsheets/vitamin...
Unless your a Vegan, you don't really need to worry about getting enough B12.
BTW: Draft beer has B12, and It's also good for your heart.
Drink Responsibly <3
more then b12
Recommended daily intake is approx 2.0mcg
[P.s. It's not just from animal sources! You can get it from miso paste and a variety of other things, too.]
Approximately 3.0 mg of B12 is the RDA for adolescents and adults.
Excellent Vegetarian sources of B12 are Tempeh, Miso, and Nutritional Yeast. Adequate Vitamin
B12 is absolutely essential for good health.
Buy Spirulina. You don't need artificial supplements.
Normal Adults only need at least 2.4μg/day. Pregnant and Lactating mothers need slightly more. Infants and children need less. It really is a small amount - but difficult to obtain organically without a meat product. The amount in unwashed vegetables (basically, the dirt on the veges) is very small. Fortified cereals is the nicest method for veg*n's, IMO.
Little worried that Mrs. Reznor was right about that defiencey that you have going on....???
What were those 4 d's again?
TO answer your question, it depends on other variables such as age, sex, and health problems. For adult females it is around 2 mcg recommended daily. However, since you are in fact male, and have serious mental defiencies already, the amount you need might be different. Check out this site.
I get the full value just because I have to vary my diet so much anyway. Vitamin waters have a lot of it.
In the UK, we need 1ug a day.
You will get your full amount by drinking a glass of semi skimmed milk per day.
Or you could take a supplement :-)
fall asleep in class during the B12 lecture did we? tsk tsk...
To answer the question, most people need 2.4 mcg daily... YOU probably should get on injectable B12, 1000 mcg per ml
that would improve your personality at least twofold.