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One of the most significant consequences of B12 deficiency is its impact on the nervous system
Ling, C
Usually, B12 is absorbed in the stomach with the help of an intrinsic factor protein
The good news
A recent systematic review and meta-analysis of 21 randomized, placebo-controlled trials examining the effect of B-vitamin supplementation found the supplementation decreased homocysteine concentrations and improved measures global cognitive function but had no effect on individual measures of executive function, information processing speed, or episodic memory (89)
This partnership is key to getting the most benefits from B12 injections while avoiding risks
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