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However, it is not known whether vitamin B 12 supplementation, in addition to folic acid supplementation, may be beneficial in the prevention of NTD (62) randomized controlled trials are needed to address this question

On the other hand, those with severe kidney problems taking high amounts of B12 may see a high level of toxicity since the excess vitamin B12 wont get eliminated from the body easily

Metabolic Support For those focused on wellness or weight management, B12 shots for fatigue also offer indirect support by enhancing how the body processes fats and carbohydrates

It depends on the cause

Healthy red blood cells ensure the brain receives adequate oxygen, which is essential for clear thinking, sustained focus, and emotional stability