A recent meta-analysis of 12 observational studies found that higher dietary intake of vitamin B 12 was associated with a 23% lower risk of depression compared to lower intakes, but stratifying the data revealed a significant protective association in females, not in males (99)
In addition, people who take a vitamin B12 overdose, especially in parenteral form, may be affected by reversible skin reactions
Not that it would give you cancer
Recalls & Warnings January 17, 2018 Joint and Pain Relief Product Contains Undeclared Drug On January 17, 2018 Health Canada warned consumers that Linsen Double Caulis Plus, a supplement for joint pain, was found to contain the undeclared drug dexamethasone
By delivering the vitamin directly into the bloodstream, injections provide a reliable and effective way to restore levels when tablets are not sufficient. How Vitamin B12 Deficiency Develops Over Time How Vitamin B12 Deficiency Develops Over Time Vitamin B12 deficiency does not usually appear suddenly