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If you are on a vegan diet, you should change your diet to include B12 fortified cereals and grains
The detection sensitivity reaches the nanogram level, making it suitable for quantifying trace active ingredients in capsules and related pharmacokinetic studies
If it is necessary it can be administered up to 1 ampoule 2 times a day
However, some people may have difficulty absorbing or obtaining enough vitamin B12 from their diet, leading to a deficiency diagnosed by a simple blood test to measure your levels
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