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Blood tests, like serum B12 levels and complete blood counts, are key to making these decisions
Vitamin D helps regulate calcium and phosphate in the body, which are essential for healthy bones, teeth, and muscles
Have you been feeling more sluggish and drained than normal lately
The NIH notes that vitamin B12 deficiency can cause fatigue, anemia, and neurological changes such as numbness or tingling, which is why visit context matters more than simply ordering a wellness shot online
PMID 23870976
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