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Athletes inject it for tendon and joint injuries, podcast guests credit it with fixing pain that nothing else could touch, and in July 2026 it reached an FDA advisory committee which voted, narrowly, to make it easier to obtain
Oral versions such as capsules or troches are more convenient, but absorption through the digestive tract is far less consistent, so the amount that actually reaches circulation can vary widely
However, certain drugs may affect how your body uses B12, making injections particularly beneficial
In men, prolonged stress can lower testosterone and DHEA, impacting skin and immune health
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