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This site b12vitamin.co.za has the following in the web page, "Vitamin B12 is a water-soluble vitamin that is naturally present in some foods, added to others, and available as a dietary supplement and a prescription medication." We noticed that the website also stated " Vitamin B12 exists in several forms and contains the mineral cobalt, so compounds with vitamin B12 activity are collectively called cobalamins." It also stated " Methylcobalamin and 5-deoxyadenosylcobalamin are the forms of vitamin B12 that are active in human metabolism. Recommended Dietary Allowance RDA average daily level of intake ." The header had vitamin as the highest ranking keyword. It was followed by vitamin b, vitamin b 12, and b12 injection which isn't as ranked as highly as vitamin. The next words the site used was vitamin b complex. vitamin b12 absorbtion was also included but might not be understood by search engines.