The Importance of B12
Supplements as a Source of B12
WHO SHOULD TAKE B12 SUPPLEMENTS?
B12 can be an important supplement for many people, but the primary group to consider taking extra vitamins is vegetarians. Because B12 is most commonly found in meat, anyone who does not eat meat should consider supplements. Many vegans take B12 supplements on a weekly basis. In addition, individuals experiencing pernicious anemia (a once-fatal disease) can typically experience a relatively rapid recovery through B12 supplements. Older individuals are also at greater risk of developing B12 deficiency, and are thus better candidates for B12 supplements. Of course, in any case individuals should consult their physicians before taking any kind of supplement, including B12.
HOW ARE B12 SUPPLEMENTS TAKEN?
B12 comes in many forms, including pills and injections. Most multi-vitamins also contain B12 and are the most frequent form of supplemental intake. It can also be found in some energy drinks, such as Chaser's Five Hour Energy Drink. (However, as with any supplement, a doctor should be consulted before such energy drinks are consumed. Most contain more than one thousand times the FDA's recommended daily value.) Additionally, when digestive absorption is inhibited, vitamin B12 patches may also be available.
HOW MUCH B12 IS NECESSARY?
The recommended dietary allowance for individuals varies with age. From age 1-3, the recommended allowance is 0.9 micrograms per day; for 4-8 it is 1.2 micrograms. Age 9-13 it is 1.8 micrograms, and from the age of 14 onward the recommended dose is 2.4 micrograms. This amount is easily absorbed through a typical omnivore's diet, but may require supplements for some. However, it should also be noted that too much vitamin B12 does have some toxicity associated and excessive amounts should not be taken for a prolonged period of time.
Source: Office of Dietary Supplements, "Dietary Supplement Fact Sheet: B12."
Published by Cassie Escriture
After working the pharmaceutical and biotech industries for more than a decade, as well as spending multiple hours running, biking, and swimming each week, I have extensive experience learning and writing ab... View profile
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