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B12 deficiency symptoms to watch for Even with the B12 in your compounded formulation, it is worth knowing what deficiency looks like
The brand's FAQ content states that side effects depend on the specific therapy, and mentions mild GI upset, headache, or injection-site reactions as possibilities for some options
Gastrointestinal absorption barriers of vitamin B 12 can be avoided by intramuscular injection
- People with significant liver disease (the 9-month monkey toxicology study showed dose-dependent periportal vacuolation in hepatocytes that the FDA flagged as a possible safety signal)
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