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Kraus D, Yang Q, Kong D, et al
3rd Party Testing Quality assurance and testing information.
Hydration, nutrition, sleep, and stress management all influence both results and side effects
The following are being older, because a person becomes less able to absorb B12 as they age eating a vegetarian or vegan diet taking anti-acid medication for an extended period weight loss surgery or other stomach surgery, which can affect how the digestive system absorbs vitamin B12 Most people can get enough vitamin B12 from dietary sources
Freezing damages B12, and a frozen vial should be discarded
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