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Annu Rev Environ Resour 35:5775

Muscle pain can limit limb and neck movement, cause back pain, and cause chronic headaches

B-12 Injections B12 INJECTION BENEFITS Do More, Age Less Effective in fighting fatigue & enhancing natural energy Encourages higher quality sleep Improves cognitive function Helps regulate mood Promotes healthy skin & nails Boosts metabolic function Shown to help prevent cardiovascular disease Strengthens bone density & overall skeletal health

[DOI] [PMC free article] [PubMed] [Google Scholar] 98.Meng, H

The products appear well tolerated at doses up to 2000 mcg daily based on available reports

This distinction is not a minor detail