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A study in the Journal of Clinical Biochemistry says, Vitamin B12 deficiency can cause big problems with nerves and blood. Vitamin B12 is key for making DNA, fatty acids, and energy. Source: Journal of Clinical Biochemistry Common Signs of Deficiency A Vitamin B12 shortage can show in many ways, like: Fatigue and weakness Numbness or tingling in hands and feet Difficulty walking Mood changes, such as depression Spotting these signs early is key for quick action
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Many people describe early changes within one to two weeks for acute soft-tissue issues, gut-related use is sometimes felt sooner, and chronic injuries can take four to eight weeks or longer
It is a research compound and unapproved substance, not an over-the-counter bodybuilding supplement
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