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We would rather look at the full picture with you than have you keep guessing about why you feel run down
However, it's crucial to inform your healthcare provider about any medications, supplements, or ongoing treatments you're receiving
Previous studies examining the relationship between vitamin B12 and testosterone have primarily focused on male populations (16), particularly infertile men (9)
Talk to a qualified clinician before considering any use
How B12 Supplements Work Oral supplements pass through the digestive system, where only a small percentage is absorbed
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