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Synthetic B12 (cyanocobalamin) is less bioavailable by comparison and requires a three-step process to be converted to usable B12 in the body
When your body does absorb B12, it takes time for the vitamin to be distributed throughout the body and more time for the body to use it in a way that is noticeable
Care at Home: Support your energy levels with SkinCeuticals B-Complex supplements, which provide a sustained release of energy throughout the day
Still, as the problem worsens from malabsorption, it can lead to diarrhea as a symptom of B12 deficiency anemia
Professional athletes who need to improve their physical performance
The evidence is unclear or shows little to no benefit from using B12 supplementation, but more research is needed in these areas
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