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The Journal of clinical endocrinology and metabolism , 82 (5), 14721479
B12 therapy may support individuals experiencing fatigue, low energy, poor dietary intake, absorption issues, or nutritional imbalance
Doctors look for a doubling time of less than 72 hours for levels this low
B12 deficiencies often lead to fatigue, weakness, and low stamina
Role of cytokines in intervertebral disc degeneration: Pain and disc content
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