does b12 injection cause insomnia Vitamin Side Effects: Risks of Excess Intake Does B12 Keep You Awake?

If you are living with an MTHFR mutation, are vegetarian/vegan, or are susceptible to vitamin B12 deficiency for other reasons, you now have more tools in your tool box for understanding and dealing with vitamin B12 deficiencies

Its necessary for proper brain function, the production of red blood cells, and DNA synthesis

A separate meta-analysis that pooled results of trials in older adults with mild cognitive impairment found B-vitamin supplementation (6 to 24 months, depending on the trial) had no benefits on various cognitive parameters, including executive function, information processing speed, and episodic memory (90)

Randomized controlled trials evaluating the role of vitamin B 12 in bone health have used vitamin B 12 in combination with other B-vitamins