Oral B12 supplements are absorbed at roughly 1 to 5% in healthy adults, and even less in people with low intrinsic factor, atrophic gastritis, or gut absorption issues
When Can I Expect to See Results
It is unknown what information these businesses directly provide to potential customers or what type of monitoring and oversight is provided for those who use these products
Whilst B12 plays an essential role in energy metabolism, red blood cell production, and nervous system function, there is no evidence that supplementation increases energy in individuals with normal B12 status
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Those on a vegan diet naturally eliminate protein sources such as chicken, eggs (the health benefits of eggs are endless and might warrant inclusion in your diet), and fish, which have high amounts of B12