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Beef liver is the highest in B12

Individuals with known B12 deficiencies, or those prone to a potential deficiency due to their lifestyle, must supplement vitamin B12

[73] [74] [75] It is synthesized by some bacteria in the gut microbiota in humans and other animals, but it has long been thought that humans cannot absorb this as it is made in the colon, downstream from the small intestine, where the absorption of most nutrients occurs

Nerve damage happens when the provider places the needle incorrectly or at an inappropriate angle, causing numbness, tingling, or pain

How can I be sure that I will receive the medicine