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Not even a lumbar puncture (spinal tap) can test for B12 levels in the brain

(8) Long-term vitamin B12 deficiency can cause permanent nerve damage and neurological symptoms

Even if it doesnt cause hair loss, B12 deficiency can still lead to anxiety, fatigue, neuropathy, and cardiovascular issues, among other health issues

The difficulty depends on how tasty the goat finds the substance youre giving

While B12 plays crucial roles in energy metabolism and red blood cell production, its ability to enhance athletic performance depends entirely on your individual B12 status something thats rarely discussed in the glossy marketing materials