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RDA Vitamin B-12
On the net I found the RDA for Vitamim B-12 for humans is 6 mcg.
On the net I also found the RDA for Vitamin B-12 for canines to be 0.022 mg/kg. My dog weighs about 8 kg so he would need 0.22 mg/kg * 8 kg which equals about 0.18 mg of B-12 per day. Now .18 mg is equivalent to 180 mcg. Suppose the average human weighed 150 lbs or about 68 kg. So, such a person ought to get 6 mcg/day, but a much smaller dog at 8 kg is supposed to get 180 mcg/day according to the calcuations above. Thanks for your help. --Marshall |
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