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As we age, our ability to absorb vitamin B12 may decline
While natural animal products such as meat are great sources of Vitamin B12 in food for dogs, supplements are a great source of this vitamin as well
doi:10.1186/s12933-014-0129-4
Why Frequency Matters: The Science of B12 To understand why a provider might recommend weekly injections for a while, it helps to understand Vitamin B12 itself
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