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Although there is currently no evidence to suggest any adverse side effects from excess vitamin B12 supplementation, there is no need to take excessively high amounts of the vitamin, as the body can only absorb so much anyway
No - definitely not anymore, and it was never the right approach if you wanted the best results for your hair
A deficiency in Vitamin B12 can cause fatigue, brain fog, and neurological symptoms
A vitamin B12 deficiency can lead to fatigue and other health-related issues
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